Apple will launch a new line-up of iPads (and a few more surprises) at an event from California and London on Tuesday 22 October.

But what specifically should you expect from the announcement?

Here's what we know will happen, what we think might happen -- and what we're pretty sure won't occur, but we're hoping for anyway.

iPad 5

An update to Apple's flagship tablet is a virtual certainty. An upgraded processor and other basic internals are a lock. A better rear-facing camera is also pretty high on the list, as is a visual refresh. We're hearing that the new design will have a thinner bezel, like the current iPad Mini, and might come in a few new colours (perhaps even the same gold as the most sought-after iPhone 5S).

iPad Mini 2

A new iPad Mini with a Retina display, better processor and refreshed design (again in a few new colours) is another sure bet. It's possible that the same Touch ID sensor on the iPhone 5S could also come to the machine, though that would drive the price up - which seems counter to the iPad Mini's low-cost ethos. On the other hand we wouldn't be surprised if the original iPad Mini was kept around too, as a very low-cost entry point to the iOS ecosystem.

iPad Pro

There's some talk about a new, bigger iPad (perhaps as large as 12-inches) making an appearance with a thin bezel, possibly a TouchID sensor and a premium price-point. The idea would be to further blur the line between tablets and laptops. Which brings us onto…

Smart Covers

Apple's tagline for the event is "we still have a lot to cover" - and you don't have to be a genius to work out the key word in that sentence. A range of keyboard 'smart' covers' (similar to those released by Microsoft last year for its Surface tablets) would be a straightforward win for Apple, since many of its customers use such covers for their devices already. Without a kickstand it might prove more of a challenge to design something simple, sleek and useful, but we have a feeling Apple will find a way to pull it off.

Apple TV

No - not an Apple Television. But an update to the Apple TV set-top box has been trailed for a long time by various outlets, and we'd like to see an upgrade with more space for third-party apps, and a better design. Still, it's hard to see how Apple could do anything totally game-changing without a major rethink of its TV strategy, and that will likely come next year.

Mac Pro

The already-announced Mac Pro (yes, the 'dustbin' one) will get pricing and availability information at the event. As will…

Mac OS X Mavericks

The new version of Apple's desktop OS will get its final details before launch later this year (possibly before the end of October). Oh and…

Macbook Pros

We're hearing a lot of rumours about possible updates to the Macbook Pro line, including a slightly fanciful idea of a 12-inch Retina 'Air Pro' with a Haswell processor. But we'll believe that when we see it.

Mac Mini

We have no details on this, but it would be nice to see the Mac Mini get a much-deserved upgrade.
Loading Slideshow...
  • HTC One M8

    The 2014 update to the HTC One builds on the same hardware features that won the original such a fanatical response, but keeps the essential DNA intact. The massive front-facing speakers are 25% louder, the UltraPixel camera adds a second lens for depth perception (so you can refocus an image after shooting it), and there's a 5-megapixel 'Selfie' front facing lens too. [<a href="www.huffingtonpost.co.uk/2014/03/26/htc-one-m8-review_n_5035163.html?1395847758" target="_blank">REVIEW</a>]

  • Sony Xperia Z2

    Sony's latest flagship Xperia smartphone is a beautiful, thin and waterproof delight. It packs in a 20-megapixels still camera capable of 4K video, a sleeker form factor, a far better screen and built-in noise cancellation technology.

  • Samsung Galaxy S5

    This year's Galaxy S adds water resistance, a slightly larger screen, a 16-megapixel camera and a heart-rate sensor into what was already a market-leading, powerful and sleekly designed device. It doesn't rock the boat too much, but it didn't need to. This is still up there with the very best Android phones.

  • Google LG Nexus 5

    The new Nexus 5 is based on the internals of the LG G2 - which means you get the same Snapdragon 800 processor, as well as the full version of Google's new Android 4.4 KitKat OS, which integrates SMS messages into Hangouts, freshens up the design and adds new features under the hood. The camera is still a little lacking, while the design is functional rather than beautiful, but at £299 off contract it's still a steal.

  • iPhone 5C

    The 5C was rumoured to be Apple's 'budget' iPhone. It isn't - and not only because it isn't that cheap. The "proudly plastic" 5C comes in five colours (see what they did there) <a href="http://www.huffingtonpost.co.uk/2013/09/10/iphone-5c-uk-pictures-release-date_n_3899557.html?utm_hp_ref=uk-tech" target="_blank">but has the same internals, screen and camera as the iPhone 5.</a> It's essentially the same beautiful, high-end phone you already know and love, in a more colourful (and potentially divisive) design. As such it's hard to see how Apple won't sell a billion of them.

  • Nokia Lumia 925

    <a href="http://gdgt.com/nokia/lumia/920/" target="_blank">The Nokia Lumia 925</a> has the same great design and attention to detail we've come to expect from Nokia, but with some crucial upgrades from the 920 including a thinner, all-metal design and an improved camera.

  • iPhone 5S

    With the same ultra-clear Retina display as the iPhone 5, but now with an <a href="http://www.huffingtonpost.co.uk/2013/09/10/iphone-5s-uk-pictures-release-date_n_3898775.html?1378818683&utm_hp_ref=uk-tech" target="_blank">added fingerprint sensor</a>, a seriously impressive 64-bit A7 chip, an improved camera and a new gold design option, this is the best iPhone ever made. And with its consistent market-leading app selection, easy-to-use OS and delightful design, it's hard to argue against it being one of the very best gadgets ever made too.

  • LG G2

    The LG G2 is an extremely high-end 5-inch, 1080p Android 4.2.2 smartphone whose major distinguishing feature is that it has three buttons on the back of the device, which are normally found on the sides. The G2 has its camera button and volume rocker on the rear, which for many people is enough to justify the purchase alone. It also has excellent battery life for this class of device.

  • Samsung Galaxy Note III

    The Note III is huge. It's got a 5.7-inch screen, though with the same 1080P resolution as the Note II. It adds a new leather back panel, which gives it an 'office' feel in line with the productivity-plus-stylus theme of the device. It also adds a Snapdragon 8000 quad-core processor, some new software enhancements and a few new S-Pen functions into the mix. If you're looking for a giant note-taking phone, this is still your best bet.