Personally, I wouldn't mind.
I think it is safe to say that one of the big issues with this game is the lack of content. It launched like that, and so whenever they patch in more content, the current players (generalizing here, I'm not talking about newbies or people that play 1 hour a week) will burn through it so quickly because they have little else to do. But if they took the game down for awhile and accumulated a good stockpile of content, then they could add future content patches without having the players jump on said content like a pack of starving wolves on a deer. I guess what I'm thinking is that they could use some time to play "catch up".
The practical part of me realizes that it may not be a good idea to take the servers down though, lest people simply forget about FFXIV and move on. I think it would be hard for a lot of us to say if we would come back or not in, say, 6 months or a year. I certainly don't know how much I will like (or hate) the upcoming MMO's I am thinking of playing. But I sure won't be playing this game in 6 months anyway unless it is vastly improved.
Just my two cents!![]()