the fact to drop the ps3 is needed, with the new mmorpg coming, they will need to add more and more. let's take some look at some interesting feature of the next coming mmorpg.

- EQN: with him physic affecting the gameplay, allowing you to litterally destroy the area and find cave in the earth.
- Wildstar: with the full custom for the pvp, mount and even equipement. plus the systeme of random mission with tons of possibility in the way to do it.

and i'm sure a lot of other idea in the futur will be added, they will need to be able to give us more feature in the futur. i found Yoshida quite lucid about the market of the mmorpg, it's a service and if the service don't evolve... people will leave.
we can't Denie that PS3 in the futur will simply be not enough for the kind of evolution FF14 will need. but i prefer see it like it take at heart to make sure the game it's of quality even on ps3 and that player will not be treated less good than ps4 and pc user.
finally it means you will at least get the first extension, good news in a way.