There didn't seem to have been any announcement on that, but
MOEVENPICK MUENSTER started featuring the full set of LCAH flags in the system (earn points, burn points, status benefits, member rates). I have not stayed with them yet, so I could only verify the "pay with points" at booking and member rates positively.
The brand does not feature in the points earning calculator (even though MANTIS or TRIBE do, and the entire TRIBE brand is literally just one hotel), so it's anybody's guess if it's going to be earning as well as other midscale and premium brands, or some discount applies a la MAMA SHELTER. MOEVENPICK is not a selectable brand on the Accor Map filter or Advanced Search, so I cannot tell if any other property is available and/or offers LCAH benefits.
Do share if you come across any other MOEVENPICK "soft-launching" before the transition to ALL.