Yeah, but episode 1 showed that was not the same Summer Camp Ash and Serena had met.
Ash overslept in the one Go was in.
Also, if you ask me, the Ash from the Serena flashback looked slightly older than the Ash of PM19 episode 1.
I mean, did you ever get a confirmation of how old Ash and Serena were when they first met? We do know that the Summer Camp Go had went and Ash missed were from when they were 5. But what about Ash's and Serena's?
Back in the days of SM, I was quite surprised they didn't try to make her cameo a joke episode. Like, Ash just casually meets Serena on Alola one day, they hang out to had a talk, the classmates see from far and assume it's her girlfriend. We could have gotten all the usual gags... Ash being oblivious to everything, Serena blushing, Kiawe being a drama queen and so on...Hm it would be hard for her to make such a casual return after her bold departure. But I was thinking of two scenarios that would be hilarious and fit the comedy of the current show.
1. Have an episode where Serena sees Ash from a distance and tries to hide from him. Maybe she runs into Goh but never runs into Ash.
2. Have an episode where 2-3 of the old girls are in a group and reminisce with Ash as Goh and Koharu’s draws drop in a comedic fashion and maybe add a comment about Ash being a player or scandalous.
Sure they could make that with Go and Koharu but I dunno... I could see Koharu either not giving a danm or actually having the same reaction she had from when she heard her mom telling about how she had met her father