With the CC updated categories list saying "Our hotel categories will be updated and will include a new tier for our most luxurious hotels, featuring the expertly curated destinations under the Quorvus Collection, which are expected to roll out soon", then this appears to be the shortlist for the Quorvus Collection:

Radisson Royal Hotel, Dubai AE 6 7 70,000
Radisson Blu Le Dokhan's Hotel, Paris Trocadero FR 6 7 70,000
Radisson Blu 1835 Hotel & Thalasso, Cannes FR 6 7 70,000
Radisson Blu Le Metropolitan Hotel, Paris Eiffel FR 6 7 70,000
Radisson Blu Hotel Champs Elysees, Paris FR 6 7 70,000
The May Fair GB 6 7 70,000
Plaza on the River, London GB 6 7 70,000
art'otel, Amsterdam NL 6 7 70,000
Radisson Royal Hotel, Moscow RU 6 7 70,000