Wii remote turned sideways? Gah, that blew my mind. Here's how I think it's going to work, though. I might actually like this setup, too... now that I've given it some thought.
--Wii Remote Only--
Left/Right D-Pad - Move character left/right. Double tap to dash.
Up D-Pad - Jump
B Trigger - Grab/Throw
A Button - Block / Evade (To evade, hold block and thrust the remote either left or right; same principle applies for air dodges and sidestepping on the ground.)
- Button - Taunt
+ Button - Pause
2 Button - Primary Attack / Smash Attack (To initiate a Smash attack, double tap direction on D-pad)
1 Button - Special Attacks (in conjunction with whatever direction is being pressed on D-pad)
**Tilt up/down - Aim weapons
See, very possible. Plus, I love the idea of motion based evasive maneuvers. I think that would work better than motion based attacks like most people are thinking is going to be the case. Sakurai's playing with everyone's heads right now. I love it.