We are now away for less than a month from the debut of the E3 2015, where Bethesda will have its own conference for the first time in history, and it goes without saying that they might announce Fallout 4, and it is a fact.
According to the Curriculum vitae at Linked of Luis Snow (3D artist, freelancer Mirada Studios) seems to hired by the studio founded by director Guillermo del Toro and Matthew Cullen, to create a trailer for Fallout 4. Probably not a cinematic gameplay, but at this point an official announcement is everything that fans are waiting.
The DOOM 4 is also in beta stage. For now we have, there is nothing left to wait for E3 2015.