I was referring to the girls in general. May got to battle Zoey as well as Dawn. She even got to participate with Dawn thrice; during the seven star restaurant episode, where she battled alongside Dawn against Team Rocket as well against Kylie & Roman and the contest finale. But didn't even have a training battle against Ash or Brock.Usually, female companions team up and battle but not this time, fortunately
"Usually"? That only happened with May and Dawn and that had more to do with them being very similar to each other in both goal and personality
It never happened with May/Misty and isn't as likely to happen with Dawn/Iris simply cause their goals and personalities are completely different (if Misty would appear though, it'd make sense to focus on some Iris/Misty interactions/battles)
So, it is really nice to see a female companion battling against the boys during her return, in this case, Ash and Cilan.
I know you referred to that, which is why I explained that the only reason they did it this way with May/Dawn (and May facing Zoey is part of connecting May/Dawn) was because they're very similar in goal and personality
It wasn't because they're girls - Misty and May barely interacted with each other at all (actually, Misty got more interactions with Max than with May)
So Dawn was never really going to have anything very special with Iris, since they're so different (and as I said, if Misty were to appear, there's no doubt they'd connect her to Iris similarly to how they handled May/Dawn)
Anyway, I doubt she'd have too much of interactions with Cilan either... he's probably just going to go crazy OMG CONTESTS I'M A COORDINATOR CONNOSEUR!!!!11111 *sparkles* IT'S CONTEST TIME! and then he'll have a Contest Battle against Dawn... XD