Good point about the differences between Crystal and Alicia. I can accept the Ben/Alicia break-up because that's a relationship with added challenges which were pretty well handled using comic book relationship standards. It was time to get the two together.
I also don't want to see Johnny and Crystal together again. The Medusa thing was just so f***ing stupid that I'd like to see it never mentioned again. But Johnny having a decent and friendly relationship with Crystal (and Dorrie Evans as shown in ish 645) would be a sign of his growing up. And I'm still convinced the Johnny/Alicia thing was even stupider than Johnny/Medusa. There are villains that see those actions and shale their heads at Johnny for his actions. Low behavior.
But I'd like to see Victorious hang around a while and develop her own personality and habits. She may catch on, she may not. But in the Lee/Kirby heydays, guest stars did not vanish but usually stuck around for a couple of issues or so. That would be a good way to incorporate the Silver Age dynamics of FF.