Kalle Rovanperä has 3 options for 2018 and beyond:

M-Sport, Malcolm wants 3-years deal, Jouhki maybe doesn´t want to commit Kalle that long

Skoda, fastest R5 but what after that, WRC from where?

Toyota, gazoo junior program can offer him R5 car (Fabia or Fiesta) and he can test WRC, easiest team to work with and only 2km from home.

Any of those 3 would not surprise me as Kalle´s 2018 team.