The last I heard is that Elvington is indeed going through the motions to become licenced but not sure how far through the process they are, if they have started at all yet!
The air taxi is a new one to me but I have to admit i'm not suprised. I do know there is someone already lined up to do heli pleasure flights.
I wouldn't hold your breath about pax flights though. The runway is massive with very few local obstructions, and the museum is good but other then that there is nothing there and would need major investment.