ricky, sorry if I didnt make it clear, but at present LH does not need an italian AOC for the present network, not even for flights to the US they would need an ital. AOC.
But as they asked for the AOC, because they might plan other routs, they would need to employ pilots on an ital. contract.
But to answer you question, yes it will change when they employ the pilots on LHITA, just figure it out by yourself, 6 a/c in MXP are presently operated by LH crews, in the future these a/c should be operated by LHITA crews, so 6 a/c less for the LH pilots, less CPTs needed, less F/Os needed.