The Marketplace is currently being reworked. there will be soon a new Seller Portal. A beta is about to happen… I’ve heard that Epic is willing to let publishers decide of their release date… I bet this new seller portal will give you the status of your submission and a “grayed out” greenlight button that will unlock once your submission is fully reviewed/approved and ready for release. Press the button… click confirm… boom!!! it’s live!!! 
how about that. I also have this idea that they didn’t want to release anything for real until this beta test is done… Mean they were piling up the approved submissions and wait for the publishers to release them on their own and see any problems / bugs / issues arising. Just how I feel about that…