Already planned, and partly implemented! In fact, if you open up the Info panel for a player, it’ll tell you their Bartle classification right now. And this is supposed to affect how players are rewarded for particular actions… although I can’t seem to find that code right now, so maybe it got lost during an AI update at some point; I’ll have to make sure it works and is obvious!
Most of the game’s “tech tree” hasn’t actually been implemented yet, but if you’re testing the game you can see the planned-to-be-available technologies when you upgrade to v1.0.0 (or if you reach them, v2.0.0 or other major versions). Support for “Parties” and “Guilds” will make you more attractive to Socialiser-types, “Badges” and “Leaderboards” are attractive to Achiever-types, “History”, “Landmarks”, and some others are more for Explorer-types, and of course, the Killers like PvP Combat and Arenas.
If you have specific ideas for technologies that would attract or repel particular player types, I’d love to hear about them! The list of technologies needs to be much longer than it is right now, so any suggestions would be great!