We're due for another Yorktown, Wasp, and Hornet. And after the Ford replaces CVN-65, we'll need another Enterprise!
We have a USS Wasp:
USS Wasp (LHD-1)
The last USS Hornet, CV-12, is a museum:
USS Hornet (CV-12)
The last Yorktown, CG-48, was decommissioned in 2004.
USS Yorktown (CG-48)