They're more likely to be coming in the following season.

Too bad the Japanese writers have decided to stopped make anymore Pokemon movie because if they have continued this time with Liko, Roy, Dot and the rest of the characters in the main movies then it would be great to have legendary Pokemon like Koraidon, Miraidon and Ogerpon to make their proper appearence.

I mean, if Terapagos did, but Ogerpon wouldn't join, that'll just be too unfair.