.hack//
./hack as JRPG franchise has disappeared from the home console space after GU. The series did continue in the handheld atmosphere, a fighter game for the ps3, movie, novels, manga and more. A New hack game is in the works, for what we don't know. It might just make a comeback with the success of the ps4.
Arc The Lad
Arc the Lad has 5-6 titles between two generations and just like it appeared it disappeared. Sony owns this franchise, but with that said, I don't think Sony the owners of greater JRPG franchises, would bring this back first.
Baten Kaitos
This franchise disappeared after gamecube and besides small rumors and speculations by fans, it has remained gone.
Breath of Fire
Breath of Fire 6 is in the works, but for the mobile platform.
Brigandine
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"Brigandine Grand Edition is a full blown remake compared to Legend of Forsena, hence being a second game. It comes on two discs with kingdom specific parts of the story now told in cutscenes, there's a new monster, new classes, passives added for each class, better graphics, attacks done on the field of battle instead of a switching screens and going 3d, red/blue no longer do more damage to one another. It's now blue > red > green > blue, another map location, bosses. Music was changed, worse in my opinion. There's also a multiplayer option with different presets of the map, six countries able to be controlled by humans or ai."
Chrono
Despites fans wanting more and Square Enix knowning this, there has to be any real development in this franchise reappearing.
Dark Cloud
Dark Cloud has disappeared after two amazing games. However some people are already speculating that level 5 might have Dark Cloud announcement at Sony E3 2015.
Front Mission
"The last RPG on home consoles was 5 on PS2. Since then we got a mobile and a handheld game, plus a mediocre third person shooter made by a western studio."
Grandia
Grandia III was the last entry to the franchise. However Grandia II is being ported to the PC and one could assume if this title does well, we might see a new entry to this series known for great stories and even greater battle system.
Growlanser
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"6 games released for home consoles (5 of them for the PS2) with an RTS style of combat and multiple endings based on your relationship with the rest of the characters. "
Jade Cocoon
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This game disappeared with Jade Cacoon 2 early in the ps2's life.
King's Field
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Don't be sad this title dissapears, since this series is reborn as the souls series.
Legend of Legaia
This series is gone, no way other way to say it. It could make a surprise reappearance, but doubtful the IP owners (Sony) are willing to take the risk with this one, not when they own another Legend of game that is by far more popular.
Lost Kingdoms
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This lesser known title from FromSoftware had two titles on the gamecube and was never heard from again.
Lunar
This franchise has enhanced ports after enhanced ports. In 2005 a new title did appear on the DS, but it has long since appeared on a home console.
Mana
The original series ending with Legends, and the series on the home console front ended with Dawn of Mana. This series is still alive in the mobile market.
Ogre Battle
While this series does see PSP port of the tactics side of the series (Tactics Ogre: Let Us Cling Together), it has largely disappeared. Here is hoping it makes a comeback soon.
Parasite Eve
Parasite Eve 1 and 2 were on the original playstation and were amazing blend of horror and a JRPG. They did eventually release 3rd title in the series on the PSP called Parasite Eve The Third Birthday.
SaGA Series
Shadow Hearts
With Shadow hearts developer (dissolved) and IP owner(not really making games), you won't get a new Shadow Hearts game.
Shenmue
I don't want to write about this, because I don't know much about this franchise outside that Yakuza series takes a lot from it, but good luck getting shenmue 3.
Shin Megami Tensei
The fourth installment has appeared on the 3DS, however Nocturne was the last main shin megami tensei game to appear on home console.
Shin Megami Tensei Devil Summoner
Shin Megami Tensei Digital Devil Saga
Both Devil Summoner and Digital Devil Saga seem to be less of priority to Atlus at this time, but if Atlus wanted they could reappear in a snap.
Suikoden
Suikoden V was the last Suikoden game to appear on the home console. However this series has really disappeared from gaming in general. Suikoden Tiekreis the last game to appear was on the DS. With Konami questionable behaviour as of late, it is very unlikely, but still hopefully that a new title will be made.
Valkyrie Profile
Valkyrie Profile 2 was the last game to appear on home console for this series. It did have one more entry in the form of a DS game.
Wild Arms
Wild Arms is very similar to Suikoden in terms of recent game history, with 5 being the last one to appear on home consoles and XF appearing on the PSP. However this franchise is more likely to see a new entry on home consoles, than almost any other entry.
XenoSaga
Nintendo owns the company and have decided to focus on another xeno set of games called Xenoblade. Namco most likely owns the IP to Xenosaga games and characters. The IP is considered complete, and most likely will never have a 4th title. With that said Namco's Harada has made some fans of being hopeful of an HD set for the trilogy.