I don't know what you could possibly want besides Wavedashing.
The knock-back looks completely different, all the veterans seem to have some touch up, directional air dodges are back, power shielding is completely different, the game looks noticeably faster, more damage happens in 1v1s, etc. We don't even have the game yet so their could be more intricacies we aren't aware of yet. If you are a competitive player you should be well aware that this is not Smash 4, not even close. If you aren't and you still can't see any difference between games then I don't think you would even if they showed Street Fighter game play. I hate to be rude but this game is way different from 4 and it just looks like a case of ludicrous expectations.