Captain America: Civil War - 16 Things We Learned From The Directors' Commentary

The team also offer a little hint of what else is to come, saying that Infinity War will be grounded similarly to The Winter Soldier and Civil War.

That actually comes as something of a shock: as far back as the first Avengers, there's a hint of Thanos wanting to "court Death", and it has been quietly assumed that that would be his end goal in united the Infinity Gems. But surely a grounded movie can't go that way?

Maybe we'll just see Cate Blanchett's Hela ported in in place of actual Death?

That issue aside, it's hard to see how an intergalactic, all-encompassing war over magical artefacts could ever possibly hope to be grounded. And why would we even want it to be?!