From the AZ website:

Press Release of 3 February


I'm wondering what chances there are of any kind of an ongoing bilateral agreement between AZ and AFKL going forward; even at the best of times in the old Alitalia day, there was never much closeness or enthusiasm to their partnerships, so I can't see much prospect of any such agreement being extended indefinitely. And I think AZ would be more interested in maintaining partnerships with the likes of AR than with AFKL - they've acquired a whole new suite of European partners, after all, so AZ seemingly would have no need for AFKL anymore. And I'm not sure how badly AFKL wants to maintain access to all the Italian outstations it currently has access to only via ITA. Maybe, instead, we will see more Cityhopper/HOP! service to Italian outstations, even seasonally.

But the killer is that Flying Blue doesn't award XPs for non-Skyteam operated flights, so whether or not AZ is kept as a Flying Blue partner, you'd need to have booked a KL/AF marketed codeshare on AZ to get XPs, so AZ is already "gone" for all interesting XP-earning opportunities.