I dont think their on break, How do you think Revontheus made the Revontheus character remake (On Twitter)?

There will be a limit (There will always be a limit in OVERSOUL like gold, character space, etc; if were talking LIKE AQW, SGs will probably have no limit), if there is no limit to a friends list (Possible LAG to everybody) and it is unlimited, then it would take up game space.. which leads to a probable rollback(Go back to a point in the game because of LAG)or a system failure OR it could lead to limited space to put stuff in-game. WHICH leads to a point where the system will NOT allow anymore in-game releases/items

As of the game STILL in development... and no limit has been announced to inventory, then therefore it is unlimited. BUT as Nulgath announced there will eventually be limited inventory space as the game is still young.

~Athena~