I remember being pretty excited about the game before even the official reveal at E3 when info about the title were leaked days prior, but the Jump Festa trailer elevated my hype to way higher levels than I could've ever anticipated. Went from a day one purchase to a Day -4 (Got it from a retail that broke the street date). Shared it at the time with some of my friends who hated fighting games and it got them super interested in the game, too.
I don't think that a fighting game trailer could ever generate any bigger hype, not even a sequel to DBFZ.