Subtle implication that there's more than one type of play style; trailers only showed the "tip of the iceberg."
Customization is a big part of the game. Capcom rep. strongly hinted at a stage editor of sorts.
Ryu, as well as the three Mega Man variants, are confirmed as playable characters. Hints of a large roster of playable characters.
Not only do the three Mega Men differ in appearance (Mega Man, Bad Box Art Mega Man and Rockman), they each have their own play styles and abilities. Bad Box Art Mega Man, for instance, can fire two shots at a time.
The "angry" Mega Man was designed by Masafumi Kimoto. Why is he so angry? That's just Kimoto's style, apparently.
Although the trailers made it seem like MMU is largely influenced by Mega Man 2, there's a "very good possibility" we'll be seeing content from other Mega Man games.
Mega Man Universe not making it to Wii has to do with the file size limitations of Nintendo's WiiWare service. Capcom noted they would like to be able to support a Wii version, but couldn't at this time.
Target release date of Spring 2011.
"Everything we've shown will make more sense" come Tokyo Game Show, according to the rep.http://protodudesrockmancorner.blogspot.com/2010/09/mega-man-universe-details-from-pax.html