...Since Marvel got a cinematic universe, and DC isn't too far behind with its own, I'm wondering if Image Comics should get its own cinematic universe as well.

What characters and/or teams do you want to see have their own movies which will follow up to a big event, like The Avengers and the upcoming Justice League?

Thing is, Image doesn't really have a shared universe in the comics. Most writers go there to tell stories they want to tell without having to be tied down with continuity.

Some comics would make good movies(Saga,Nail biter), but not shared movies.

Well, the Image shared U for any other medium would probably have to be the IPs owned by the co-founders/partners, ala Image United. So Spawn, Savage Dragon, Invincible, Top Cow stuff, and Shadowhawk.