Well let us see... There are numerous EA IPs that are being sit on like Road Rash, Desert Strike, Theme Park, Magic Carpet and General Chaos which will probably never see the light of day again.

Another Power Stone would be cool.

Oh God, there's so many great retro games, it's impossible to name them all!! First of all though, I guess we have to know what you mean by retro, or else it's a bit harder to make a list. But some that come to mind for me:

- Hagane: A very hard SNES game, but it's a lot of fun trying to persevere!

- Doctor Hauzer: An early 3D horror game, it's pretty interesting

- Street Fighter 2010: This game is also very hard, but it's a neat little game too

- Tobal 2: A fighting game with 200 playable characters!! There's also a Quest mode that is pretty cool

Frame Gride. Developed by From Software and is a online/offline arena fighting game.  It's like Armored Core meets Virtual On.

Can I call a Gamecube game retro?

FREEDOM FIGHTERS.

One of the negatives of the NES era for me was that the focus shifted from reflex based game-play to the memorization based game-play.  Klash Ball, on the other hand, was fast and frentic.  I used to rent it all the time and play until my fingers hurt (thank god controllers have advanced).

I'm waiting so much for a new magic carpet!

I always find it funny whenever a developer said that a computer/console lacks the power to morph terrain, this game did it over 20 years ago - without even a 3D graphcs card!

I don't want a new Theme park, i want the first one with it's bugs fixed! Maybe some new attractions while we're at it, but that's about it, really

But what I really want is a new western Wizardry, a true sucessor to Wizardry 8. After all it had a multiple ending from where to continue the story (ok, you're cosmic lords now, but still)! And a new Might & Magic set in the pre-Ubisoft Science Fantasy setting

I'm just surprised someone else actually remembers Magic Carpet.  Tis a shame what happened to Bullfrog Productions and their IPs after being acquired by EA.

I enjoy Heroes of Might & Magic a lot but only played 2 and 5 on PC and Clash of Heroes on the DS.

Etrain Odyssey IV is pretty close to that. 

Every PS1 Final Fantasy game should have gotten a 3DS remake by now. Sega should focus on remaking Panzer Dragoon Saga from the ground up a second time. Sega in general should get all of it's epic Saturn games put on the 3DS or another system. Maybe make it part of Nintendo's VC library.