Were you disappointed about FFXIII but not sure if you wanna play an MMO, well if you aren't into a mmo or game in general that is going to be a challenge Final Fantasy probably isn't for you.
Personally I'm excited, I didn't get to play much of XI but my boyfriend had a couple level 75 jobs and since then has got me more and more into it.
If your fear is "dumb" players present in every game but who mainly came out after they made WoW easier, Final Fantasy usually weeds out these people. Its literally a game where you should (and sometimes have to) be nice to fellow players to get shit done.
They'll probably offer a month free when it comes out, so try it. If you don't like it I won't hate you haha.
here's some links to final fantasy xiv information:(they don't look like links but just click it)
Final Fanstasy XIV main site
FFXIV Core
Eorzeapedia
This is a FFXIV Miqo'te which has been darkened by photoshop (they've released shades for playable races but users still have to speculate a little)