I'm not too sure about the online yet, Tekken Tag Tournament 2 developer is not to sure about the Wii U Online capability.
This makes me worried.
Selective reading/slightly misleading comment.
The Director of Tekken Tag 2 say's he does not "fully understand" Nintendo's online system. Tekken has been done for a long time now, and is coming for Wii U running on their own severs and such. What the director is talking about is probably Nintendo's own friend list/miiverse system. In my mind it is just that ambitious, this Nintendo social network.
Every developer with major online has said nothing bad about Nintendo online and we are getting the real versions of major multiplayer games including COD and Aliens CM. Chances are it is going to be just fine.
And like i've been saying since forever, this miiverse with built in video and text chat in OS will make this the best online smash yet. At any moment we will be able to pause the game and vidoe or text chat right with people on our friends list. The only worries that anyone should have is what modes Sakurai and the team are going to be putting online along with how they construct the net code.
This is going to be glorious.