The only new airport that has been planned in N Italy that I'm aware of is the Chinese backed "Europe1" which was planned to be near the planned Breschia Verona high speed train line
I can't find an exact location - but it was going to be huge
Project Watch - Europe 1 - Airport World Magazine
Seems to have been around Montechiari where there are already two fields - Ghedi AFB and Breschia-Montechiari but neither of them look anything like the GE image above