PAUL, PAUL, PAUL.
If this tournament doesn't feature a battle with Paul, then it's complete and utter illegitimate. If there's one thing a character like Paul would join, it's a global fighting extravaganza. If he's not in, well, then we need to reassess how many tough trainers ALSO haven't joined and that turns the whole thing illegitimate since you obviously wouldn't be able to call yourself the strongest if trainers like Paul or Tobias for instance wouldn't join.
So... Lillie and Gladion still don't have a resolution regarding the Mohn-plot. I'm kind of expecting them to get it in this series as opposed to a special since we've kinda moved on from that at this point.
Also, yeah. Drake (OI) would be awesome to see again. I would laugh so hard if he's in the Top8-bracket, but if he were to be a part, then at least in the Top100.