Does anyone know when summit will release Eclipse's trailer?

we don't know when it will be released.

However, there's been much speculation about it showing before "Remember Me". Robert Pattinson also stars in it, and it is also a Summit Film.

Also, there is a 7 minute Eclipse exclusive on the Walmart New Moon DVD. We don't know what that is exactly. It was said to be a 7 minute trailer, but I think that is distorted information. I'm thinking that exclusive is more of an interview/behind the scenes feature. However, there could be an eclipse scene included as well. All we know is it will be 7 minutes of unseen Eclipse exclusives.

It's proabably not gonna happen... But they could release a short clip of Eclipse at the ( KCA's) Kids Choice Awards on March 27th airing at 8pm Pacific time...