Yeah he was a great Ultron. Sadly defeated by marvels script writing.The internet twisted him, but James Spader as Ultron is fantastic; he's so...eccentric.
Well I guess his hunt for the Soul Gems leads him to finding out about Earth's Sorcerer Supreme and the latter maybe being able to help him.
I heard that Hela could be in possession of the last Soul Gem in the MCU.
Good that would be an option. After GotG 2 I am sure that we have to see Tony, Peter and Steven in one scene together... Comedy gold.
Would be okay. We need it after all. Infinity War is upon us.