Yeah they said it was Maintenance but thats a HUGE update. I think they've got everything ready in the background for the new game. 30GB is easily a full game so I think theyve got us to install it then they'll flick the switch if we buy it. Just my opinion though. The game didn't need 30Gb of fixes.
I don't know if these two things are correlated, but I've managed to play online for the first time! Man I miss that. I haven't done online fishing since Euro Fishing.