It will be interesting to see whether the above 5 rumours were true, and whether the current Nuts and Bolts information is true. Based on the current NeoGAF info, it fits #4 and #5.

4 and 5 were both clear and obvious jokes when i read them, my thought was "they wouldn't screw it up that badly", lets see where we go now that the pictures match those the best

I think 1 would be funny especially if Grunty wasn't in her ugly form. 3 is the only one that seems even close to something plausible.

It is an April Fool's joke all 5 scenarios are lies, lol.

1: No. Just.... no. Would give little kids nightmares (and by 'little kids', I totally don't mean me )
2. Kazooie is clearly seen in the gameplay screenshots, not to mention the fact that most of their abilities rely on him.
3. I'd love this one actually, but it would fit the plot of a movie or tv show more than a game.

4. This one seems the most likely. Just off-beat enough to make for a comedic story, without being completely stupid.


5. No. Changing mid-game from a cute platformer to a gritty war-story is Conker territory.

Also, the press release about Microsoft Gamer's Day (MGS XD) says the game is called "Banjo Kazooie: Nuts and Bolts". This fits most with number 4.

I wouldnt be surprised now if its #5. Imagine building your own vehicles, and watching them attack other armies of vehicles. The RTS will involve where you place your vehicles and how you have built them.