Dude only DIe hard fans are buying this game. All fighting game players already have there game. If this game was big in the tournament scene then sure maybe but its not so there really not going to get any new people. Tekken fans want DOAX3.
I think VF fans are mad now so I would not count on there support.
DOA5U isn't directly competing with TTT2 because Harada isn't trying to nickel and dime with another iteration of TTT2 a year later...why? Because it was a complete game already.
The two are irrelevant in comparison because TTT2 was already out for a year in the arcades. Basically they updated the arcade version when bringing it to console so it didn't need to make another update. The original TTT2 had 41 characters. When they updated it to the "ultimate" version aka console release, they added the 18 more new characters.
DOA5 was never released in arcade. It's just not the same comparison.
On another note, you just won't give up being sour about this game, are you? Cry moar why dontcha.