your forgetting something about the legendary ending. it shows him floating towards another planet. which means diffrent aliens to shoot. doesnt have to be flood and covenant. could be an entirely new kind.
every1 thinks that Onyx, maybe it is, but maybe it isn't and what if it's a forerunner place and they're ur enemies instead of ur friends? That's something to think about...
okay, me and my cousin made this up so don't think it's real, I was just putting in something since lonewolf said new aliens! and it is still undetermined whether or not Gravemind was the only flood mind so if ter more then tat mean more Flood! yay I guess.
Plus, I thought about tis after I read all Termys, Mendicent Bias or whatyever was an AI, maybe a Moniter, I think, so wen teh Halo were fired wouldn't he survive? He was a bad guy to the Forerunners from wat I gather...
of course there will be a halo after halo 3. dude, this series has a cult following. if they don't, there might just be rioting in the streets. yay rioting!
well they could make an epilogue that tells the story that happened before all of the Halo games...or would that be a prologue...but if it was a prologue would it be too late to make it?
they already have a prolouge if u read the books (i have not yet) but they do need to make an epliouge like what happens to master chief after he shuts down? and what happens at earth with the arbiter?