It's not dead yet!
I'm sure that the US DoD will make JSF as a programme work eventually; indeed the USAF doesn't have much of an alternative, so Dave-A is going to be made to work, even though it will serve in much smaller numbers than the existing F-16 fleets. I'm also confident that the USN will also get Dave-C to work, not least because bureaucratically the USN is not going to want to surrender the LO game exclusively to the USAF.
Dave-B is, however, dead jet walking as far as I can see. Too expensive, too complicated, but most importantly, the ConOps and the mission set makes no sense at all.
S41