Ash and Misty hardly see each other in canon now, in the TV series. If they met up again it'd be really touching, but also probably super awkward. I can't imagine what way I'd react to an ex or an old friend popping up out of the blue.
Maybe this ship needs to die. It's cute and everything, but realistically, they're probably completely different people now. Anything less would just be bad writing.
Yeah, Ash's new look also shocked me, he looks younger that AT THE BEGINING of his journey. especialy glaring since he looked older than usual in his FireRed/Lucas hybird outfit from Diamon&Pearl. and Hilbert on whom his current outfit is based seems older than the preavious protagonists. Still the plot of Best Wishes seems quite good so I cut them some slack( even if it lack old good characters), And aside from deaging Ash looks quite good there. Awsome comic by the way!
Maybe not, but there were a few references to the passage of time (1 year till Ash got his Earth Badge, and at least one other 'till the Pikachu And Pichu short). Plus IIRC Gary said that the Pokemon League only meets once a year.
So, yeah, even going by in-universe references, Ash still should be like 15 at least. But he clearly isn't.
Those few references to the passage of time that you mentioned are English dub edits. They don't exist in the original Japanese version. Only the original Japanese version matters. Fuck the faggot 'onigiri are donuts' English version. Also, in the original Japanese version of the start of Best Wishes, it's CLEARLY stated that Satoshi/Ash is STILL 10. So he's still 10. Not 15. Not 23. Not 76. 10.