The official Earl of Sandwich website lists it as "Coming Soon." Back in February they said it would open in early summer, but nothing's been updated since then. Hopefully it will open soon, I can't wait!
I really hope it opens before I visit in August. It's one of my favorite places to eat at WDW. There were signs up in NYC for over a year saying that Earl was coming soon. They finally opened two in Manhattan but I haven't had a chance to eat at either yet.