1.Predicting the MEGATONS of NINTENDO's E3 2012 conference
You're all allowed to make 5 predictions which will happen on stage with Iwata and co.
One cannot predict games of which we already know, but one may predict, for example, things we'll see in such games such as new gameplay mechanics, new characters etc, of which we haven't the foggiest.
A new Metroid game. I'm still undecided on if I think it's going to be a Metroid Prime on the Wii U or the oft-denied Metroid Dread on the 3DS. I think it's about time we get a sequel to Fusion!
Wii U name change. <- With how Nintendo realised that the 3DS is a confusing name when it comes to mass marketing the product as something different to the DS, I think they'll change it. Of course we'll all believe it's because they realised it just isn't a very good name.
A Wii U Mario launch game. I think it'll be a brand new game (think Super Mario Sunshine to Super Mario Galaxy rather than Galaxy to Galaxy 2). <-They keep talking about how the 3DS only really took off when the two Mario games landed, so I think they'll leave the gates with one this time.
The Nintendo Network will be fully unveiled explaining how we can have a single account for use on the Wii U and the 3DS. It will also be mentioned that we can transfer Wii purchases to the Wii U. <-Not sure if this one counts because it seems to be considered a certainty.
The GBA & DS back catalogue will be trickle-released on the 3DS Virtual Console and the Gamecube & Wii on the Wii U Virtual Console. <- I'm almost certain we'll get one of these. As they're going to be digitally distributing Wii U games it can't really be countered with "but Wii games will have huge file sizes!". Also, with the Wii U having Wii hardware for Wii emulation it should still contain the MIOS for GCN.
This is where you can make the most out of your fantasy, because you can make 4 'unlikely-to-happen' kind of claims which might happen during the whole of E3..
DS games will also be available on the Wii U Virtual Console with the controller screen acting as the lower screen and the TV acting as the upper screen. <- Unlikely as Nintendo probably see this as a selling point on the 3DS.
All Wii U games will be playable in 3D on 3DTVs. This won't be a selling point but will just be there and work much like the nVidia 3D Vision on PC. <- Unlikely because it might detract from the 3DS. I think it has to happen though because it'll probably be like this on the other next gen consoles.
A 3DS redesign will be announced. It won't be called the 3DS Lite to avoid confusion with the DS Lite. It will have a second analogue stick, slightly better screens and a clamshell design which doesn't leave an imprint on the top screen. <- Unlikely because Nintendo won't want to steal the Wii U's thunder.
Wii games will be rendered at 1080p instead of just using hardware emulation. <- Nintendo have already said this won't be the case and it would take quite a technical feat to achieve without issues. I've included it though as they know it's a wanted feature.
3.Predicting the aftermath
You're also allowed to make 2 predictions regarding all that follows the conference, which would be predictions regarding interesting teases from developers, roundtables, Reggie laying down the law on Geoff once again, ...etc....
Super Smash Bros 4 will be shown behind closed doors to the gaming press. <- I seem to remember it happening with Brawl.
Mass Effect 3 will be announced as a third party title available on the Wii U at launch. It'll be a port which makes very little use of any of the Wii U specific features. <- I'm hoping for a ME3 which uses all of the Wii U features to the max but I can't see that happening!