They should 'continue' the GRIMM story with actress, Nicole Steinwedell (Adult Diana) & Kevin Joy (Adult Kelly) as the two main characters. They concluded the original Grimm and know all about the "Trailer'.
Then, old cast members like Nick Burkhardt, Trubul, Bud, Rosalee, Monroe, Claire, etc... can all make guest appearances knowing that their roots are still there.
Then, old cast members like Nick Burkhardt, Trubul, Bud, Rosalee, Monroe, Claire, etc... can all make guest appearances knowing that their roots are still there.