I don't think it's in their plans to let xi die if they can help it. When XIV is well enough to stand on it's own it's monthly fee will be very similar to XI, unless of course they change the amount it was originally set at. ($12.99) For a basic single account with one character. $3.00 per mule.
http://lodestone.finalfantasyxiv.com...vi/envi04.html
XI's being at $12.95. $1.00 per mule.
http://www.playonline.com/ff11eu/envi/charge.html
It would be kinda foolish to try to kill off XI or even force a move to XIV since you would risk losing players for hardly any gain per month in subscription fees between the two. I think what they really want to do is to get players on both games if they can. As far as not getting much feedback on the ps2 topic, dispite it being a really heated debate back and forth on several different threads, tells me that they are either:
1) Thinking about it. Trying to nudge players to switch by not offering the ps2 disks off their site and a general lack of hardware support.
2) Not mentioning that they absolutely will not drop the ps2, because in doing so this would discourage alot of players who are hoping for some major changes in the way of new content.
We'll just have to wait and see what happens when XIV is fixed enough for them to start charging. I'm hoping they don't let XI die due to becoming stale.