I believe the correct verbage in the PR was "IENT intends to announce the initial in game Sponsors by May 1 to be included in the first launch of the product".
IMO...If the sponsors PR doesn't come by May 1st don't panic. This is as good as it gets...news or no news it is obvious where this will be sooner than later. Keep adding when these cheapies when they are available...it wont last forever.