That one guy from the Lego movie who loves giant sausage comes to mind...

"Yer a Lego Wizard, Harry."

The Lego Bionicle Movie, obviously. 

Lego Elf-Bowling: The Movie: The Video Game: The Movie, in Lego! - In IMAX 3D!

Well, the obvious one for me is LEGO Ninjago, but we're already getting that.

Bionicle's nice but might not translate nearly so well to the same format as the other theatrical LEGO films.

The LEGO Space Movie featuring Benny could be a lot of fun!

An Exo-Force movie, complete with lots of anime sound effects and weird facial expressions.

The other benefit of an Exo-Force movie would be Exo-Force not being dead.

Galidor.

Galidor.

No.

Bionicle's nice but might not translate nearly so well to the same format as the other theatrical LEGO films.

It's also a shame that Greg has no screen-writing credits. I can just imagine him writing a Bionicle movie filled with one-liners, giant robots, and dimensions out the wazoo.