The proposal is for developing the F/A-18G(Growler) which would replace the EA-6B. The F/A-18G would have the same limitations that the EF-111 Raven had and the only advantage would be speed. It would take three F/A-18G's to replicate the mission capabilities of one EA-6B. Also, preliminary cost analysis show that it would be cheaper to reopen the Prowler line than to introduce a new platform. 104 sets of new wings have been purchased so the entire Prowler fleet will be rewinged and the ADVCAP upgrade will keep the EA-6B's in the fleet for a long time to come.
Incidentally, Gillcrist is one sharp guy. He blows the fallacies about stealth technology out of the water in his article The Myth of Stealth