So, here's something I've been thinking about: If Travis was in currently hypothetical DLC pack 2, what would his reveal trailer look like? With Ultimate, it's nice to see DLC fighters get trailers that are a little more involved with their core series and doing something interesting as opposed to Smash 4, but I've been trying to figure out what facet of the NMH series they could use to represent Travis in a reveal trailer. Travis Strikes Again gives a trailer an easy in; we could get a trailer of Travis looking through the Death Drive games and seeing Smash. He turns Smash on and goes into the game, cue gameplay.
Alternately, something cheeky about ranks or numbers would be a cool nod to the NMH franchise. Imagine a trailer that starts with the Character before Travis and their fighter number, then slowly, but increasingly faster, the screen flips through all the fighters and their numbers in reverse order, until we pause on Mario at #1. Fade out, and into a scene of Mario finishing up a fight with another character (maybe Donkey Kong, #2), only for someone off screen to say "Are you number one? "Cause being number one is my thing, and you're in my way. I fought through everyone else and you're the last one left, so let's dance!", cue Travis jumping into shot for his splash screen, then finishing his jump to clash his sword with Mario.
After gameplay, maybe they could give a cheeky nod to the competitive scene in Smash. After Travis beats Mario, Joker comes up from behind him. "What, I got the wrong guy? YOU'RE number one? You've gotta be kidding me! Ah well, you'll go down the same as all the others!". Cue Travis and Joker clashing in the poses of Travis and Henry in their final fight and painting in NMH1.