I guess it could be possible, on the PS store it says "Online Play Optional", the same as Planet Zoo, so some sort of franchise mode seems plausible at some point.
Considering there's still skins unlocked in challenge mode, there would be skins that are rarer on the market, so they don't need to invent new ones. If hatcheries no longer produced dinosaurs in that mode, then they could control the rarity of various skins.
Instead of conservation credits, it could be 3 types of Reputation token you get from rewards with the 3 factions (I don't think it could be reputation itself, because purchases would hurt you early on).
One aspect of Planet Zoo console is that the servers have never been good enough for peak usage during the fortnightly events, atleast here in Australia.