I predict Cheren is going to neglect his duties as a Gym Leader by tracking Team Plasma down.
Oh wait, that's too good for the anime to handle.
Currently writing: The Missing Link!
Guys it doesnt matter if scraggy won a quick less than 15sec battle against a Darumakka, it is a win but Scraggy deserves a real and long battle agains a worthy opponent. For example, Leavanny had a great battle, it's ok if she doesnt battle for some time, Oshawott had a decent battle against Hydrigeon, he could use another battle too but not that much as Scraggy. Scraggy could be a great choice agains Cheren along with pignite and oshawott to make it a 3 vs 3 agains Cheren.
Cilan - Leaves for a year.
Chili - Randomly visits a town near Driftveil.
Burgh - Leaves to Pinwheel Forest.
Clay - Refuses to battle until Ash runs his errands.
Skyla - Can't even battle properly.
Drayden - MIA.
Roxie - Leaves on tour and recently returned.
Calling it right now...
The Zangoose on the February Calendar is Cheren's and will debut if him and Ash battle.
Why? Because Golbat and Seviper most likely belong to the Plasma Grunts like they do in games, the Mienshao, Beartic, and Scolipede are the ones from Colress's episode, and Ampharos and Mareep are most likely going to appear in a filler taking place in Flocessy Ranch.
Golbat: team Plasma
Beartic: team Plasma
Mienshao: Team Plasma
Scolipede: Team plasma
Zangoose; team Plasma
So we will get a Mareep/Ampharos appearance also, the others we already know where they appear.
Still sticking with Dent helping Cheren learn the ropes of being a Gym leader and IF someone battles him it will be either him or Satoshi(I don't see a battle with a main character happening actually)
Iris just battled Drayden awhile ago.
Ash finished his league already, finished his gym badge collection quest.
So right now, I think the two that might fight Cheren would be Dent or the rookie girl... Or maybe... Bianca!!!!!! <:
As for the calendar, Zangoose might be Cherens second Pokemon. The other stuff like Beartic are Corless experiments. As for the Mareep and Amphy, Floccsey Ranch!!!
Off topic, but does anyone find it weird that they gave Ampharos a cameo in the Axew gets lost episode when it's gonna be introduced a few episodes later? I hope Bianca gets Amphy or something D:
Credits to Sworn Metalhead
Anyway, I don't know why some people are assuming that Cheren will need help from another Gym Leader. The guy may be a new at his job, but I don't think this will be one of those episodes where we see how a new Gym Leader runs their Gym; we already got one of those in AG and to be quite honest, it was dreadful. We don't need a repeat of that imo.
It would be hilarious if no one even mentions it.
As for Mareep and Ampharos, i think there is a possibility that they would simple be just some random wild pokemons.
Edit: I haven't checked a lot recently, so can any tell me if there had been any preview for this and the next episode (like the one we got for BWS2EN 01 & 02).