I rather want to see Super Saiyan 4 is also a special form like Legendary and God form, just renamed it.maybe called it Super Saiyan Beast. Don't call it as the 4th form, because it has different appearance than normal golden hair Super Saiyan. For Super Saiyan 4, just change the name. It sad to see characters like Baby, Super 17 and Omega Shenron got wasted only because of GT bad story telling. That why I always hope, if new Dragon Ball series will happen, not just a new story but I hope both Akira and Toei will reboot/re-introduce GT characters in DBZ style back. Like I said, the only good thing about GT are the villians and Super Saiyan 4 only. Make Goku as a kid, messed up with Vegeta's hair and bad story telling. What to say.Toei just ruined Dragon Ball with GT. I know he is still Vegeta none the less, but I feel like the way he looks in DBZ is how he's supposed to look and always should look. Especially him having shorter hair, instead of the long spiky hair he had throughout the entirety of Dragon Ball Z, kills the character for me. I know what I'm about to say isn't related to this character in a M.U.G.E.N way, but I personally never understood why they decided to change Vegeta's appearance so much in Dragon Ball GT.

Mugen goku vs jordan