Saw your post earlier, Adami, but I haven't seen anything official in the usual places. (granted, I haven't looked that hard) What is your source?
I think the fact that people are so eagerly anticipating a trailer is a fascinating phenomenon. I know this isn't the first movie for that to happen with, and it is just sort of a thing now for people to anticipate a trailer and then analyze it to death and try to piece together the entire film. But with the 10 year, 18 film (assuming I counted correctly) build-up to the first Infinity War film, the anticipation is obviously justified. Marvel has done a pretty brilliant thing here.