I know in Captain America: The Winter Soldier, there were next-gen helicarriers being built. However, I highly doubt that Fury had it completely decommissioned. I think he has it stored somewhere.
I know, a completely random post right? Not so random if you watch Agents of S.H.I.E.L.D. I have come to wonder why Coulson hasn't thought of operating out of the original Helicarrier.
It looks like shit gets real in next Tuesday's episode. I think the original Helicarrier is underground somewhere. Knowing Nick Fury, probably still in commission for this exact reason. Working HQ and off the grid.
Lol sorry I have S.H.I.E.L.D fever right now!