It's useless. Negotiations have been underway for several years now, but the number of bases has not increased because of this. In addition, modding capabilities allow you to have dozens of ships and combat squads on one base, so there is no formal need to increase the number of bases.
I guess:
As soon as there are people who are able to implement the strategic concept of Total War (economic control over the territory through military control over the "city" (Base) located on this territory), then there will be people who are able to increase the number of bases to the number of regions.
In the game "Total War" (Civilization), the player can also have a dozen armies in each city. But economic control over the new territory is achieved only through the military capture of enemy cities.