According to an email from Konami customer support (posted by NeoGAF user Alo0oy) we can expect the amount of Forward Operating Bases the player can build in Metal Gear Solid V: The Phantom Pain to increase in the future.
The user bought the largest Mother Base Coin pack, but couldn’t use all of them because the current limit for ‘FOB Waters’ (that allow players to construct additional bases) sits at three. Konami Support stated that ‘this is according to game specifications’, adding: ‘That being said, please note that it is scheduled to be increased although the date is yet to be fixed’.
You can see the full email below:
Wether additional features will be added as well, or the limit will simply be raised, the email didn’t specify.