These T-Mobile devices will receive Android 6.012
T-Mobile lists three levels for an update: Manufacturer Development, T-Mobile Testing and Completed. No surprise that the only units completed are the Nexus 5, Nexus 7 and the Nexus 9. The Nexus 6 is in the midst of T-Mobile testing, and all of the other devices are on the first tier, Manufacturer Development.
The T-Mobile devices that will receive Android 6.0 include the HTC One (M8), HTC One M9, LG G3, LG G4, LG G Stylo, Samsung Galaxy Note 4, Samsung Galaxy Note 5, Samsung Galaxy Note Edge, Samsung Galaxy S5, Samsung Galaxy S6, Samsung Galaxy S6 edge, Samsung Galaxy S6 edge+ and the Samsung Galaxy Tab S2.
You can bookmark the page and check it out every so often if you have a T-Mobile device on this list.
Thanks for the tip!