This game has been really good, but it could use some more. Some ideas such as corporate airlines and aircraft, Cargo operations, duel gates ( A27a, A27b but as one unit), hangers, ramp holdings, supersonic transports like the Tupolev TU-144 and the Concorde, doing airport recreations such as Gibraltar ( the airport with roads actually having the ability of going through the runway), Admirals clubs, realistic passenger flow based on real events, like the 1982 oil crisis, singular stands with 2 jetways for handling widebodies, airport mechanics of outdoor terminals (kona keyhole for example), terminal transfer buses.
Game is great as always for us aviation nerds, keep it up.