Yeah, I was hoping to see this in NA. Clean and organized way to show stats, upgrades and ships. In this case devs will need to introduce ships in packs for each nation. That can take more time, but if they open up donations for new ships it can be done. This tree can also make sure that everyone tries all ships.
Tree Branches:
-Light Ships (Maneuver ****, Firepower *, Armor *)
-Frigates (Maneuver **, Firepower ***, Armor ***)
-Merchant/Warships (Maneuver *, Firepower **, Armor ***)
-Lineships (Maneuver *, Firepower ****, Armor ****)