No, Scooter's still planned to be in the Ghostbusters/Muppets story as a member of the Muppet side of the team.
That and "The Invincible" and "Seein' Green" are the three stories that I intend on writing him into.
It's amazing how many votes "Nights of the Knights" is getting here. There's a poll happening on SuperHeroHype.com right now, in which everyone is asked which movie this year they're most looking forward to, and
The Dark Knight is getting the most votes out of all of them (73.6% to be exact).
I'm looking forward myself in writing that one, since it is a "Sesame, DC" tale and I haven't written any of those in a long while.