i don't think it will be yearly that is way to soon for halo... from what i have seen the learning curve that is based on the game takes at least 1.5 with the 1.5 just to beat the living hell outta each other... as krillin said they pump oput a new COD yearly and no one complains which is true but now that infinity ward owns the name modern wafare and i don't think there no longer working with activision just trycearch (sp?) will be seeing more of a gap between the games and maybe a little better on the story line as well as the online play....with this so called re-realse of Halo honestly i think that they should combind one and two as far as online goes still keep the stories seperate but i would loveto take hang em, high on line lol but i guess we shall just wait and see oh don't put ODST in the catagorey as a stand alone title it really wasn't it was as Rob said a expensive expansion pack