The problem with the constuction at Tyndall was it was Cancelled (and some delayed) in 1999 and when Tyndall got the first F-22 IQT mission the money for the base updates 'magically' appeared. Folks were worried the base was going to get the AX so getting the F-22 IQT was a big coup as Eglin, Luke, Langley and others wanted the first unit.
I just called some friends at Tyndall and as far as they know the base is still planning on getting the FTU at the 325FW. With Langley getting the first Op units after Edwards testing. Of course as you said these things are fluid as are most AF decisions. I'll see what a hear in the future and try and post it.
Now if I can only get Tinker to close
(which could happen