Actually the line up for 2013 isn't all that bad or barren and bleak like most people would say. To prove that let's do some research on famitsu. (Mind you this is from a Japanese sales point of view and not North American)
http://www.famitsu.com/schedule/psv/Excluding the titles that probably won't increase the Vita sales all that much, for 2013 you have
Feb 2013
-Ciel RE:incarnation (Japan only)
(NOTE: the game sold pretty well in Japan according to some sources and I expect the expansion to do more or less the same)
-Ninja Gaiden Sigma 2 Plus
-Phantasy Star Online 2
(NOTE: Phantasy Star Online 2 is HUGE in Japan and second to Monster Hunter. So definitely this title is a tide turner for the console - at least in Japan)
March
-Soul Sacrifice
-Tales of Hearts F (Japan only)
-Steins:Gate (Japan Only)
(NOTE: Steins:Gate's popularity was HUGE in the visual novel/anime scene and the releasing the game on the Vita is a testament that 5pb (the company who made the game) is confident that it will sell well)
-DOA 5 Plus
-Atelier Meruru 3 (Japan only)
-One Piece Kaizoku Musou 2 (This will make it to overseas, that's almost 100% sure)
Unconfirmed release date for 2013
-Jet Set Radio (Jet Grind Radio)
-God Eater 2
-Vahalla Knights 3
-Guilty Gears XX Accent Core Plus R
-Gundam Breaker
-Dragon's Crown
-Zone of the Enders HD
On-Going Projects
-Final Fantasy X remake
-Level 5 unconfirmed RPG
-Atlus - Shin Megami Tensei unconfirmed RPG
Also, I've omitted a bunch of titles that aren't popular or well known in North America. Interesting enough seeing a variety of titles on famitsu says a lot on how the console is performing. The fact that there are a multitude of titles from different genres that are being planned proves that the system is on-going and that 3rd party developers are interested in making games for the console. The PS Vita is not dead, just that IMO Sony is determine to fix their market on the home front first.