I've tried Brawl+ but not Brawl-. Can't seem to get the game to work, it freezes at the stage-selection screen.
Brawl- however, despite bein' a hack of inferior origins like Brawl+, is still bloody fun. Definitely give Brawl- a shot. Ya can't play it competitively since it's broken as shit but as I said, it's fun as all hell.
I have not tired it nor researched it but I think I should put it out here
We will probably have to wait till E3 to get more information.
Here is everything we know so far: http://nintendoenthusiast.com/11678/...ros-wii-u-3ds/
What kind of art do you do?