http://www.sora-evo-3rd.com/

Trails 3rd Evolution confirmed for Vita.

I wonder what they'll move on to once this is done.

I think that would be the final nail in the coffin.  Dedicated gaming handhelds have no future especially not for Sony because they're less casual than Nintendos.  

They are building a sizable Japanese install base slowly but surely. By the end of next year it will be over 5.5m. Now they can drop that and launch a new handheld that will bomb badly and cost them a lot of money or they can keep selling about a million a year with the vita.  

You'll say but the 3DS sucesor will release and be more powerful.  but you forget in Japan that makes no difference.  The vita is a lot more powerful then the 3DS so the jump to the 4DS won't put it a mile past the vita.  Nintendo might even just match it in power because they know a low price is way more important than power.  

So yeah the one positive with the vita being so powerful is it can pretty much go another gen.  End of next year it will be 5m Vita's vs the 4DS starting on zero.  Now that lead won't last long but they'll be in a much better position then if they went back to zero.  

Sony have 2 big options that can really revitalise the vita instead of its current ~1m a year. They should at least do option 1. 

#1 make a Vita 3.0. Basically just a hardware revision that lowers the price to a really appealing level.  This will give it a big advantage over a new console launching.  

#2 get monster hunter back on the system.  This alone would boom sales but combined with #1 the vita would explode.  

#3 get the big games multiplatform.  So that's monster hunter / yokai watch / dragon quest mainline etc on the Vita.  They'd have to fund it but combined with option #1 and their domination of smaller titles they'd do well.  

Lastly we have dragon quest heroes 2 and Dragon Quest builders releasing early next year.  currently the big dragon quest fanbase is not on vita.  Could these 2 titles cause a big influx of sales?  along with attack on titan,  World of Final Fantasy, minecraft and possibly kancolle kai there is hope yet. 

Bottom line is Sony can do something but I fear they're happy just to ride it out and get as many ps4 games on vita as possible for the extra profit and it makes getting ps4 game deals easier. 

http://www.sora-evo-3rd.com/

Trails 3rd Evolution confirmed for Vita.

I wonder what they'll move on to once this is done.

Nayuta Evolution, may be?

More than 4Ds being more powerful than Vita, I would say that mobile games are already at FULL PS3/360's level of graphics and little more...

But SONY have to ditch early Vita if they want to make something relevant next, I would bet for a hybrid with android, its own game OS and Vita/PSP emulation/retrocompatibility. But, I'm almost sure that SONY will not continue on Portable/mobile hardware market.