How do you feel about the possible closure of LUG ?
It is sad, I've been flying from/to LUG since I was a kid. Arriving at the airport 20 minutes before departure or getting an "aperitivo" at the bar outside with family/friends just until boarding was priceless.
But times have changed. After the Ceneri tunnel opens, there will be no time advantage anymore between catching a train from Lugano to ZRH and connecting onwards vs. flying from LUG. For passengers from Bellinzona/Locarno it is already faster to get to ZRH by train and checking-in there and for passengers south of Lugano, Malpensa is closer. LX flights to Lugano became very unreliable lately, with too many cancellations. This naturally decreases trust in the flight and many passengers already migrated to the train or to MXP.
The best would be for SBB to do a direct train to ZRH Airport without having to change trains at Zurich main station. Lugano Airport should become a general aviation airport like Samedan. It could be run profitably without requiring much public money to stay open.