What do you guys think about the spirit of fire crew making an appearance in halo 4? They must re-appear at some point because of the message received with the legendary ending of halo wars. Besides, halo wars isn't particularly important to the storyline of the halo trilogy. I think they made it with halo 4 in mind. I also don't think that chief would be abandoned on an unknown planet and be the only human there.
I'd love to hear your opinions on this because i haven't been playing halo that long so there could be information that i've missed. thanks.