So, I don't think this is the avenue the Flames want to go; prospect swapping... it's also generally not something that happens too often for guys who've never played a game in the NHL.
I think Calgary would be more interested in the prospects + picks for 22-25 year old centres who can play today and might have some upside. The issue is these deals rarely come along, and their costs are normally pretty high.
Calgary has 6 first rounders between the 2024 and 2026 NHL draft. That's a bunch of capital. They also have a prospect pool that is now starting to take shape into being one of the better ones in the NHL, however, very little talent that is under 24 at the NHL level (it's 4 players for anyone wondering).
I've been saying it all year, the Flames need to put themselves front and centre on any of the 'why'd this guy get traded?' type moves that happen every year in the NHL. They missed out on Kakko, which was dumb, but they really can't be in a position to miss out on anyone else. There's not enough guys at the NHL level that you look at and say 'no this guy needs to be in the lineup every night'.