Funny thing is, Bioware is indeed working on a singleplayer game that's someone else's IP. That is, as one could say, a FACT. So, the whole notion that singleplayer is exclusively the area where that statement stood is right out the window. The statement has little ground to stand on at all.
It seems that the OP is constantly making up things to support his conclusion. First he claimed that a new forum was created on the day of the announcement. Well, there's no new forum, but there is a MMO listing under games which is not all that new. It goes back to 2006 when Bioware announced they were opening an MMO studio. Then he starts attributing Bioware's "original IP" statement to single player only, which is not only a bad interpretation because of baseless assumption, but it is a bad interpretation because they're working on a Sonic RPG already, it's an interpretation completely voided by fact.