No.
YoshiP has already stated AFK users are not the cause of server strain. In the coming weeks and months we will see less people swarming the servers at the same time. There will be less issue with people loging in then. The ability to go eat lunch and come back is a great feature for the game. The game even has an /afk icon. The developers had people being away as an intended feature.

I would like to see character stores again in the form of Bazaars. FFXI had plenty of people AFK all night to sell their wares outside of the auction house. I await such features again.