GoT has lots of characters and settings to work with/pull from. Chun Li and/or Cammy being badasses never gets old either. Some wizardry a la Harry Potter could be good fun as well. And of course pretty ladies foightin'... can never go wrong with that (which I guess applies to Chun Li and Cammy? lol) I'll also put in a shout out for some old school Star Wars... when shit was cool!
Hmm... how about horror as a theme?
Ant-man and the wasp?