Hope so, especially since https://www.tribesuniverse.com/ seems to be gone now.

Links to the individual .iso's and .zip's just so happen to be still live though:

Earthsiege
Earthsiege 2
Starsiege + Starsiege Tribes

Tribes 2 Tribes: Aerial Assault
Tribes: Vengeance

Also, you can use these updated installers from Sierra to install those ISOs with ease - they were created just for this purpose.
http://sierrahelp.com/Patches-Updates/NewSierraInstallers.html

Are all of the other games FPS action games?

Yeah, Earthsiege 1&2 and Starsiege are mechs sims and the Tribes games are FPS games.

One can hope, got my name in the manual for Starsiege.

I wouldn't hold my breath.

In 2015 Hi Res Studios gave away every game they owned in the Metaltech/Tribes Universe for the 20th Anniversary. The two games they *didn't* give away were Missionforce: Cyberstorm and Cyberstorm 2: Corporate Wars. It looks to me like the rights to publish those games was still in the hands of Sierra when it got acquired by Activision and now the rights are probably in the hands of Microsoft after it bought Activision-Blizzard-King.

The way Hi-Res only seems singularly focused on ressurecting Tribes, I'm also reminded of how the XCOM IP went through 15 years of development hell as various companies focused on turning out a remake of the spinoff FPS and basically forgetting all about the strategy game that launched the franchise.

I don't see Erez Goren and Todd Harris taking such a radical departure away from the MOBAs that keep the lights on and Tribes 3 in order to develop a turn-based mech strategy game or a competitor to Mechwarrior or Armored Core.