I don't see why just because Ash has a new female companion it means that only the previous can show up! I'm starting to notice it! Just look--when Ash traveled with May, Misty shows up; when Ash traveled with Dawn, May shows up; now when Ash is now traveling with Iris, only DAWN gets to show up (along with Sinnoh Champion Cynthia, nice :D)?!
I don't like it that way! What about all the people out there who are feel nostalgic for all the other characters? Are they gone forever?!

...While hoping May shows up soon or someday in the Pokemon series I'll be listening to this:
link
Click on link if you wanna listen to it! BTW, I don't own the video.

^ I agree with you, May should come back

Yes every main character has appeared (Misty and Brock in a flashback) except May and Max :c

I am not watching the anime now so i don't care and the anime's too stupid now for May to return! And besides, everyone's hugging N no one even cares about May so without the demand there's no need for her to return

Yeah Iris and Cilan need to meet the love of Ash's life (aka his girlfriend)