This kind of ties into what I just said. Yet if there a strong attachment to the character, there is a greater chance of disappointment. Since you have such a strong affinity towards Adam Warlock, what are some expectations you have of the character? What are things you're willing to bend on? Things you would prefer not to bend on?
Well, right off it is unlikely that I will get much of what I want from Warlock unless they introduce him in Ragnarok or the very beginning of Infinity War and make the first movie a dual Warlock/Thanos origin story. Neither of those things have been even vaguely hinted at, so I don't see them happening. However, if somehow he did show up in Infinity War, I'd for sure want him to be the possessor of the Soul Gem. That's so wrapped up in his character that I wouldn't want it to happen any other way.
Given that none of that is likely to happen, and he might just show up in GotG3, my next biggest hope would be that he continued on in the MCU as a significant player. But I find that fairly unlikely as well, simply because the movie viewing public doesn't even know who the fuck he is or care about him, especially if he has nothing to do with Thanos and is just a new villain/opponent/acquaintance/companion for Starlord and Co. If they make him a compelling character there, he might make it into a further cosmic movie or two, but until we know the true direction Phase 4 takes, that literally might only be a movie or two at best.
So I'm already pretty much resigned to the fact that I'm not going to see the Adam Warlock I want. He might physically match what I want, since it isn't really that difficult to take a decent actor and cover him in gold paint. Hell, Ayesha's second in command, the dude from Farscape, would have made a great Warlock if you ask me. Facially he matched what I would want in the character. I would expect him to very rarely if ever laugh hysterically like some of the Sovereign did to Taserface, or call each other losers when they failed at their video game spaceship fights, etc. He's an extremely somber and conflicted character, like practically emo at times, but not to the point of being retarded either. I fear that if they make him that way, however, and he interacts with any of the Guardians on a non-enemy level, they will crack jokes at his inability to joke back at them. That might work, and I think if anyone could do it, James Gunn could, but I am skeptical.
My ultimate would be for Peter Dinklage to be Pip the Troll, and he and Warlock have adventures. I'm not a fan of Zoe Saldana so I'd prefer they leave Gamora out of it, but in the comics the three of them are inseparable for much of Warlock's important arcs. I'd be fine with substituting Captain Marvel, but she's going to be "Marvel's Wonder Woman" so not much chance of her playing second fiddle to Warlock. I'd be fine with just Pip and Warlock, but a female companion would probably help for a lot of reasons, including marketing. Nebula could probably fill the role, actually, although I'd rather it be someone new maybe.
But Warlock is never going to get his own movie. So I'm going to have to be happy with whatever they give me and just pray that it remains somewhat loyal to the comics. It won't happen, but those things would be like his serious and often conflicted demeanor, his tragic story in terms of him doing terrible things (usually related to the Soul Gem) in the name of trying to further the greater good, and someone like Pip trying to help him cling to the little bit of humanity remaining. Maybe he could somehow end up being created and then wiping out most of the Sovereign by accident, or someone else, or I don't really know.
Now you've depressed me! And I'm not gonna get the Beta Ray Bill I want either, so fuck it!!