I can picture it all now, The trailer starts up with it's iconic logo
(Insert your main here) walks into scenic (Insert your wanted characters home stage here), questioning the situation. (Insert your main here) is then rushed out by (Insert your wanted character here) quickly smashing (Insert your main here) out of the area, (Insert your wanted character here) strikes a pose (Insert witty splash art here...)
When all of a sudden...
Saikyo... Hadoken!!, Instantly disintegrating (Insert your wanted character here), and leaving you in awe of the true newcomer. "Ryu's not going to get all the fun in this game!"
...
I'll see myself out...