New Rare game in 2010?

It's been a while since we saw a brand new game from Microsoft's Rare. In fact, there hasn't been an original game announced since Banjo-Kazooie: Nuts & Bolts (released in 2008) came out. But on the official Rare Twitter one can now read: "We may release a game this year."

Good news for Rare fans. Could it be the long rumoured Perfect Dark 2 or perhaps the even longer rumoured Killer Instinct 3? Odds are it is something for Project Natal, but who knows? I guess we will find out at E3.