Corphish and Pancham seems like something both Ash and a rival may catch. Helioptile will not be catched by Ash. His only Electric type is Pikachu. Then you have right about Fennekin, Noivern and Sylveon. But the writers possibly wants Ash to promote the Fairy type and lets him catch a Fairy type and in that case Sylveon is possible capture. Froakie will go to a rival or Ash. Then Shishiko looks like a possible team member for Ash but I am not sure. Hopefully Skrelp do not appear in the anime at all. Furabebe looks like a new girl capture Cilan will get Gogoat and the Vivillion line.