Do you think the PA banner could come back sooner than October since you know...... its not really related to any one specific season? I hope that it comes back in either March or April. Thoughts?
I wouldn't assume necessarily that it's coming back at all, at least in its original form. We might some of them come back in future legendary hero banners like we did with B!Caeda, B!Cordelia, S!Camilla, and S!Xander though.
Then again, who knows? Maybe IS will add them all to the 4* pool in version 3.0, maybe we'll get exactly the same seasonal banners next year, or maybe Xander and Camus are never ever coming back.
It's unrealistic to put special heroes like that in 4* pool first off. Legendary Hero banners seem like a big possibility because there will be more and assuming that the one at the end of this month completes the bridal and spring special heroes then the following special hero banners would have summer units and so on.
Assuming we get that many legendary heroes like fjorm
reruns of GHB are just random lol I'm sure camus and xander will get a rerun eventually
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes