This is something that I think should be considered. I understand the core changes, but the recycled content raises a cost concern. If 33% of the route content may already be owned by a player, then a discount of 33% or more (if there is a pre-order discount) should be made available to players who own SPG. Any future content will require you to buy the new game, but as a player who already owns one of the routes, I don't want to re-purchase content I already own. It's different compared to TS2020, where you still get the core game upgrades and can choose to buy the base game to get the routes included. Here, you have no choice if you want to adopt future content.