This site when the upcoming episode title will come up with the news.
We have for wait the episode titles to come up.Are they going to reveal more upcoming episodes soon? I didn't expect it.
Either way, I believe I can imagine part of the titles of several upcoming episodes, considering the Pokemon in the promo merchandise:
+ Riolu/Lucario and the Power of the Aura.
+ Eevee and the road of Evolution.
+ He's back! Wtach out with Gengar!!
+ Return to Alola!!
+ Ash and Greninja! Reunion in Kalos!!