IMO, most RE5 rumors going around right now are because of IGN-PS2.
You see, they had this "
Big Games of 2003" feature, but they Insider-locked it, so most people couldn't read what it actually said. But one of the biggest things it said on the little graphic they drew up for it, was "
Resident Evil 5".
Insert every "Capcom is getting around those stupid Nintendo contracts by making RE5 come out as soon as, or before, RE4!" theory you can come up with onto a bunch of message boards.
Once the story was
unlocked, you could see what they actually had to say on the subject. Apparently Capcom decided to
secure the website name for RE5. Ummm, which apparently automatically means that it's a multiplatform game, or at least a PS2 game, because there are no contracts saying it can't be. Oh yeah, and they admit that it's most likely
not a 2003 title.
But that hasn't stopped anyone from listing RE5 as a "rumored" PS2 blockbuster.