I was listening to Boston Ground last night, Sun 4/24, and apparently gate E1C has been renumbered to C8. I would imagine other nearby E1 gates have been renumbered also. There was an Aero Mexico landing going in to gate C8 which used to be E1C. This was new to the controler and pilot, the controler mentioned that with in the last day they repainted the new gate numbers.

I also remember reading somewhere that as part of the C to E connector there would be a couple of concessions added and that B6 would gain a couple of gates.