Apparently it's not new but I didn't see it before : extension of Cayenne to Belem service, once a week with A320 (Carribean network).
AF602 CAY1540 – 1715BEL 320 5
AF603 BEL0935 – 1110CAY 320 6
Surprising to see the aircraft (and crew obviously) having to overnight in BEL.
https://www.aeroroutes.com/eng/230125-afbel