We need Shintani designs for DB media already, whether it's for Xenoverse 3 or for a whole new game. Not sure they'd have anything ready so early in 2019, tho. If there is a new game announced with more Yamamuro designs tho, that'll suck quite a bit too...
But that's only addressing OP's expectations, I don't really expect anything all that new from this. FighterZ stuff will probably take the most focus, and then we got smaller stuff like the new SDBH game for Switch. I don't think we've seen Piccolo, Cell, or Golden Frieza gameplay for Jump Force, so maybe we'll get a short trailer with all of that and Trunks as well.