How Dragon Ball FighterZ's SSB Goku and Vegeta could work without overshadowing their Super Saiyan variations based on canon
If you play Hyper DBZ (The Mugen game), regular Goku and Vegeta are separate characters from SS Goku and SS (Majin) Vegeta. They're 4 completely different characters. If a fan game can pull it off, this game should be able to too. Granted, Hyper DBZ is amazing. I'm crossing my fingers that this game isn't all hype, but it's hit or miss with ArcSys.

New trailer for Fantasy Strike shows a super that is very similar to Ryu's Ultra 2 in Street Fighter 4 - crowdfunding started
I love Yomi because it's the best card translation of a fighting game. It's got it's own niche in the fighting game world. But as just another video game, these characters don't have the same appeal for me.

Why are people so frustrated with Capcom? Has the negative stigma of Street Fighter 5 rubbed off on Marvel vs. Capcom: Infinite before launch?
People do this to every Capcom game. Before SF4 came out, I hung out on the GameFAQs forums looking at all the new info. People constantly criticized. KoF12 was supposed to be the "Street Fighter killer". Only time will tell with MvCi. I'll play as long as Spidey gets in (which he will, of course)