Work progressing on new I-40/Loop 335 interchange (to be ex-Helium Rd. exit)
https://www.amarillo.com/story/news/local/2021/08/11/40-state-loop-335-project-entering-next-phase/8096950002/
Looks like, as previously predicted by multiple posters, this is initially going to be a volleyball interchange. If and when I-27 is rerouted over it in order to extend it north of Amarillo per P2P plans, a stack will likely materialize if lapses in judgment resulting in dense development occupying the corners doesn't occur.
And in response to a previous post, if parties in central Amarillo express a preference that the existing I-27 from the loop up to I-40 near downtown remain an Interstate, that'll probably happen via a 3di (this isn't NY, so probably no multi-standard business loops!). If they don't, it could well revert to a unsigned I-facility retaining the US 60/87 shields.