Until I test it for myself, I won't buy the game. MW3 discouraged me from buying BO2, so even if IW revamps Ghosts, there's plenty of skepticism to go around.
I'll probably badmouth it and refuse to buy it until a week or two after it comes out.
Then I'll get it because that's what the majority of my friends play. Then after 2 months, I'll go back to pretty much just playing halo.