Wont happen. Never does with these kinds of things.
https://en.wikipedia.org/wiki/Royal_Antwerp_F.C.#Players_loaned_from_Manchester_United
Manchester United have had a long association with Royal Club Antwerp and send players on loan there, less so in recent seasons. A big factor is Belgium's less strict foreign player/work permit laws which allowed Dong Fhangzou to play and get a EU passport after 3 seasons at Royal Antwerp. Probably works more in Man Utd's favour than Antwerps. Not sure there is much benefit to us, maybe training/medical/preparation idea sharing and maybe a game against each other.