It's high time Nintendo gave the (mainline) Pokémon to another dev.

Here are some good candidates.
>Level-5
>Fatlus
>Mistwalker
>AlphaDream

Other honorable mentions
>Squeenix
>Scamco
>TecmoKoei


Give Game Freak a rest. They need to make more IPs like Drill Dozer or Pulseman