Either it's the best kind of April Fool's joke (the kind which everyone falls for), or it's true.  Either way, win-win :P

Probably a joke, but if not... :o 

I'd be cool if it was real! As long as it gets localized that is.

I seem to remember Kagari having some kind of inside info for Squeenix:

http://www.neogaf.com/forum/showpost.php?p=158418919&postcount=246

http://www.neogaf.com/forum/showpost.php?p=158419879&postcount=259

"People questioning SE and Vita support. Just wait."

"And yes better late than never is a perfect way to describe what they're doing."

They are working currently on SaGa Vita and Agito+. Hope to see from them Dragon Quest and Final Fantasy games on Vita soon!

There you go.  Happening already.  Also Dragon Quest too, it seems:

http://gamrconnect.vgchartz.com/thread.php?id=200637

I'd rather they work on some other stuff for Vita to be honest.  Dragon Quest non-mainline titles are at home on 3DS, and Final Fantasy is milked all over the place these days.  Go after some of their other legacy IP's for Vita, like they are doing with SaGa.

I never really played any Dragon Quest game before. But I guess it's a good news, since it'll be the first game to hit a Playstation handheld, so maybe a fresh new userbase. (Except for a niche DQ spinoff on PSP if I recall right.)

Saw the Dragon Quest Heroes 2 PS Vita news already, hope that it will be true! Would love to see that!
Final Fantasy Agito+ is not a real Final Fantasy imo, I want to see something like Crisis Core or a HD Remake of XII. This would be really amazing! And you are right, there are a lot old Square games (like SaGa) which I want to see soon! For instance Star Ocean, Front Mission or Chrono Trigger.

Dragon's Quest has to be April Fools... I refuse to believe a high profile established franchise is coming to Vita :p

I wonder if Disgaea 5's poor debut bodes well for a rethink on whether it'll come to Vita.

Stumbled across this today:

http://www.dualshockers.com/2015/03/19/final-fantasy-xi-will-not-come-to-ps-vita-after-all/

The rumors of FF XI coming to Vita were true... but unfortunately the project fell through :(