On the topic of Mega Man TGS dropped a trailer with Tundra Man and Acid Man. We get a small glimpse of their weapons too. It does go by quickly though. Acid Man's seems to be a shield type, while you also fire a new projectile while it's up, Tundra Man's looks similar to the charged version of Storm Tornado. So a big vertical hitbox.
And if you didn't see Impact Man's weapon, it's a Dash attack, one that can be done in mid-air too, I bet you can take some good short cuts with it.
A preview manga thing gives us another look at the Younger Dr. Wily and Dr. Light. Mega Man's hair is drawn kind of cool too, usually looks better in Black than in Brown.