Ok I know you're big on Starco and the series will probably lean that way because well look at the genre it is borrowing from but... What would you think if it ended with Starco but at the expense of both Star and (particularly) Marco's character? Not trying to start anything but I do see a little of where that other anon is coming from on Marco being anchored to Star only.
That would be no good, obviously. I’m not saying that their possible future relationship and the circumstances around it should be absolutely perfect with no possibility for anyone to complain about anything, but if Star and Marco are going to get together it should be because it’s something that they both really want to do, and that they do not by forcing themselves (like Marco did with Jackie), but because they truly enjoy it. Compromise is important in a relationship, but that shouldn’t overflow into self sacrifice (with exceptions, obviously!). But I don’t think that’s going to be a risk (unless that’s specifically what the show wants to use to shot down Starco…), Marco’s general dissatisfaction during his stay on Mewni has been already addressed, and might be due in large part to the difficult emotional situation he currently is in, that’s surely going to develop and get a solution, or at least evolve. I just hope it happens fast because Starco or not Starco I’d really love to see the dorks being back to having fun and getting nothing but good things from eachother’s presence!