Personally, I'll wait to see what is actually released, then I'll make the call. It's not like you have to pre-order it or you'll never be able to buy a copy.
If I think it's crap, I won't be buying it. The idea that buying a piece of shit today means that one day I'll then have the chance to buy what I actually wanted in the first place is just idiotic. I don't have a bottomless pit of money to throw away on crap.