I think it would be like A and B sections for those two. Given what happened to Star and what she did for Mewni, many people aren't going to trust her or her family given the secrets she kept that got exposed. But, would have to learn about her family's dark past it seems as I am assuming that she really isn't human like it was always implied. Marco might probably be blocked from Mewni and would have to go to many trials to get to her I am guessing, but it would be like the Heckapoo episode but much more tame in a way and more adventurous, kinda wonder if they will bring back Monster Arm for that.