Will he be stricly meta, or will the Speed Force be at play?

Lastly, I know you said you're looking to make it a more fun movie in the vein of The Avengers...but was there any pressure from WB to create a movie that could/would be able to tie in to the Batman and Superman franchises? I know a JL flick (Ben Affleck was the last name I heard them looking at to direct) seems like a high priority for them. If that's the case, it wouldn't seem to make sense to commission a Flash movie and NOT throw in a few morsels to lay a foundation for a JL flick.