[Spoiler Discussion] OVA chances after season 4?

What do you all think are the chances for an OVA after Season 4? The EX content needs to be adapted before Arc 7 is touched, and maybe the Camp Formation stories in a one-movie-per-camp setup will be the ideal way to set that up. Otherwise there could be just one movie for Prisca and Al, but that would feel oddly unbalanced for people who don't know the future content.

PS : I am re-reading Arc 7 and Abel-Louis conversation are hilarious.

Louis: “――Uau, auau?”

Abel : "Of course."