I think they left a loophole for Loki, since his 2012 self got away with a Tesseract. Although I wasn't quite following Banner's correction on what time travel does to the past/future. I was also surprised Vision stayed gone; I thought for sure we were going to see the white spectral version.
I get why Sam got the shield instead of Bucky, and I know he'll do great with it, but I'm still a little disappointed, because Sam already had a kick-ass Avengers superhero identity in Falcon. Meanwhile Bucky's still Winter Soldier, which he was given while a brainwashed Hydra assassin.
I hope Disney expands on the premises of WandaVision and Falcon and the Winter Soldier soon. I kind of hope the latter is about the two sharing Cap duties, with the occasional appearance by their mentor, Old Man Rogers.