The flights affected by the leasing agreement with Wamos Air are now listed on the Etihad site, look for the Etihad Hub

The FCO-AUH -FCO flight EY83 and EY84 are being operated by Wamos From Feb-Dec 2025. No idea why they selected the FCO -AUH route but that's a very long replacement. Feedback from the service seems positive, just the seats can be a bit hit and miss depending on the configuration.

No idea if anyone can find out which configuration from their fleet is assigned to operate EY83/84?