I have a recollection that when I passed through DFW in June (?) I saw some of the TrAAm guideways being demolished, perhaps in the vicinity of Terminal E. Sorry for the vague memories.

You can see other traces of the old TrAAm infrastructure in the escalators up to nowhere near the B AC and the escalators down to Pappadeaux in the basement of Terminal C, IIRC.

But it should also be remembered that the TrAAm was _awful_. Very slow, very long waits. It was nothing at all like an equivalent to the Skylink outside security.

Unfortunately, there is no incentive for AA and DFW to invest in good transit outside security: that would mostly benefit O/D travelers (barring I-D connections), and they are completely captive to the monopoly hub anyway.