The forum is full with ideas of how to make Boundless big. Make it F2P, advertise for it.
The problem is that the game has a 90 player limit per planet - and, as far as I know, that includes player that are on a different planet but have a portal to the other planet.
You probably don’t want to overpopulate the planets as nobody likes the “planet is full” message. Boundless had 1150 concurrent player on Steam during the free weekend: https://steamcharts.com/app/324510#All
Neglecting console player (which were vastly outnumbered during the free weekend) we can now calculate that the game spawned 50 planers for 1150 concurrent player - or 23 player per planet.
Let’s assume Boundless goes big and reaches maybe 10000 concurrent player. We’re now talking 500 planets. And while this sounds awesome it would require a portal network with at least 499 portals to connect them all.
But wait, something like TNT wouldn’t work because the single planet would always be full. (I think that’s the reason PS created the loop.) You would need at least 10 TNT-like portal networks to distribute the player between different hub-planets - and which ever network gets to popular gets destroyed by its own success. Player will flock to the “best” network just to start getting annoyed by the full planet.
These networks would consume vastly more Oort. Instead of having 1 network with 49 portals, we have now 10 with 499 portals. That’s 100 times the Oort for 10 times the player.
But the next problem is that every shop “must” connect to all 10 networks.
And while such a big universe would be awesome it couldn’t work because the number of planets scale linearly with the player base but the required amount of portals increases faster. If they really want to bring in a big amount of player, e.g. by going F2P, they must first increase the allowed number of player on a planet to something like 1000 or implement a new form of travel that doesn’t suffer from the same limitation.
Nearly every other MMORPG solves that problem with phasing but that can’t work in a game where everybody can change every block on a planet.