Hi,
I highly doubt they will suddenly remove WMR from current Windows OS, if anything as said above they simply won’t include it for Windows 12 & beyond.
They lost all faith in the VR & MR markets last year so laid off a lot of staff earlier this year (Microsoft has laid off entire teams behind Virtual, Mixed Reality, and HoloLens | Windows Central) so the writing was well and truly on the wall, so this move does not surprise me and the lack of clarity in the text without any actual announcement is also no suprise.
Thanks