While I'd always enjoy a new flying map, it should be taken into account that flying, in itself, is very memorization based when it comes to the minigame. People grind it hours on end, and as a result flawless each map, perfect each corner, and essentially race other players in a battle of "where did rng place you." Tournaments aren't necessarily like this yet, as they'll produce maps that players haven't seen, or bring back an extremely old map. This makes tournament-based flying a lot more reliant on actual skill than the amount of time that said player has been grinding the minigames out.
While some players already have a couple of the tourney courses memorized, I believe it'd be detrimental to any skill-basing left in the flying tourneys in general. It'll just turn tournaments into rehashes of flying classes: Who has grinded the minigame long enough. However, this doesn't mean I'd like to see new flying maps produced, or more difficult maps up in the flying minigame.