1. Seems to be on a very long timeline since they want protections for their unlock implemented so other tuners can't reverse engineer their unlock. Per their prior replies and general, I would not assume anything released in the near future. Apparently they have unlocked the new DME already and have posted some proof back in 2020-2021 and noted there wouldn't be issues with relocks but up to you whether you believe that. Honestly, I've given up on any US based tuners to release an unlock and plan to send my dme to Femto once my 3 years of warranty are up.
2. I'll leave this up to people who actually have gotten tuned.