If NVC happens im expecting an HD version of the Tatsunoko Vs Capcom style.
What im personally expecting regarding this hypothetical game.
Smash trailer opens with Mario and megaman in a regular match, mario is beating megaman and suddenly the screen pauses
"Here comes a new challenger" text and jingle from SF2, street fighter 2 theme starts to play.
"Ryu rises up to the challenge!"
Play rest of the trailer, at the end you see mario being thrown down to the ground by ryu a bit beaten, as he steps up Link and captain falcon step in behind him, camera switches to Ryu, Viewtiful joe and Zero step behind Ryu, screen goes to black "Nintendo" appears, then "capcom", then "Present", and boom, trailer for Nintendo vs Capcom.
Sush, let me dream!