Electronic Gaming Monthly seems to think so
[...] a third-person action/adventure shooter hybrid that takes place before the original Halo, chronicling early skirmishes between the ODST troops and the Covenant.
Obviously, more Halo
games isn't exactly a surprise, as know that Peter Jackson and WETA are also working on some sort of game, not to mention Ensemble is working on the upcoming Halo Wars
RTS. If Bungie can make this one as fun as the other games in the Master Chief trilogy, I say go for it.