It was a good movie, with an arc focusing on Thanos. I'm kind of hoping that they keep his arc going in the next film so that he can become more than just a grossly delusional villain. The comic motivation sounds like it makes more sense to me, though that doesn't make it any less crazy or omnicidal. I guess he could go out and live the rest of his days in retirement, still somehow oblivious of the tortured logic behind his actions. He seemed like a relatively sane guy, aside from that motivation. And with the power of that gauntlet, couldn't he do other much more meaningful things to bring about his dreams of utopia?
I'm worried that they'll ruin it with Captain Marvel and they'll just turn him into another Ultron, stuck on his own delusions. If he would take a step towards Loki's territory I think he would have potential to compete with him and even replace him. I think a Loki vs Thanos movie could be quite interesting, with both of them dancing between cooperation and betrayal of each other while the rest of the Avengers try to stop them both.
I know they'll never do it, but I think it would be cool if they make Captain Marvel exactly the overpowered Superman that she already looks like she's going to be, but then they throw in a twist where she becomes the villain, betrays the Avengers, and they need to go to Thanos for help to defeat her, and at the same time convince Thanos that his idea of balance isn't going to work, but not enough to keep him from trying other routes that also cause mayhem.
We can both dream though, right?