They should make a sequel to those original Nintendo/Sega joints now that Disney has the rights back.
Bring back the characters from the OG games (Nightcrawler, Gambit, Cyclops, Wolverine, Psylocke, Beast, Magneto) and expand on the formula with more abilities and new characters (Storm, Colossus, Rogue, Iceman, etc)
That would be way more exciting than them doing another Lego game for 10824738th time.