If you had the power, which game-series would you like to be revived?
For me it's:
1. Ultima Underworld.
2. System Shock (yeah, I like BioShock, but it's not System Shock).
3. Day of the Tentacle (Grim Fandango) like adventures. (Thanks TellTale Games for Monkey Island and Sam & Max!)
4. Age of Wonders.

I was going to add Deus Ex and Thief, but it seems they're already on their way. (I'm not sure about Thief though. Anyone know more about that?)

TIE Fighter! They could make an amazingly good TIE game if they only could be bothered

I've bet if anyone revives System Shock it is going to be dreadful. Dreadful boring that is.
EDIT: Lemmings would be nice though!

System Shock 3 - rumoured to be in development. But probably not.

Syndicate - definitely in development.

Space Hulk - something akin to an expanded take on the space hulk section in Chaos Rising would be good.

Transport Tycoon - Cities in Motion looks like it'll be somewhat like it. But I bet it won't be quite as good.

Dungeon Keeper - we've got Dungeons. But will it be as good? Only time will tell.

Terra Nova - a game well ahead of its time. Many of its ideas haven't been employed since either. A remake could still feel fresh today.

Outcast - a fan made total conversion is in the works and is looking like a pro-level job.

Dragon's Breath. Just loved the idea of alchemy and dragons in that game, and it had a rather cool setting.

Alpha Protocol, a new game but it's future is already looking to be rather grim, would like to see them get a second shot but unlikely to happen.

Psychonauts, but as something more than a platformer.

The old Dizzy games like Fantasy World Dizzy, Treasure Island Dizzy, etc.

Another World, different character and more indepth look at the aliens' society.

Elite, if you need me to explain why then you need to be shot and hurled out an airlock.

Realms of the Haunting, original game might have needed a bit more work but it was still a great game and interesting premise.

More as I recall them, my ol' hard drive takes a while these days to access some of my older memories.

EDIT: Just saw Navagon's post after I posted mine, you can add Dungeon Keeper to my list too. :)

And Crusader: No.......... series would be nice.

Thats the state that the series is in now, no series

I stand corrected - Crusader: No_____

I only ever played the demo to Crusader No Regret but always loved it and wanted to get the game but never did for some reason. Hope they come out on GOG would love to get the oppourtunity to properly play these games.

I loved that game. But I don't know how you could follow it up to be honest. I suppose you could base it in the asylum and there's always the question looming about just how much of it is in your head. Like Jackob's Ladder in game form. They could make it Steam only: Crusader: No Resale.

Crusader
Indiana Jones (Adventure Series, not Action Games!)
Archon
Mad TV (And no, Mud TV is not a sequel, it is just garbage)

I could probably stand to see Starfleet Command series started again...

Zing!

Maybe they could make a customised version for every major system

GOG - Crusader: No DRM
Ubi - Crusader: No Internet Connection Detected, Please Restart Game
Impulse - Crusader: No. Just... No
Onlive - Crusader: No R......................E......................M......................O......................CONNECTION TIMED OUT

Oh, Origin where art thou?
Ah yes, in bottomless pit called EA.

I suppose it would either be set in the asylum with some surviving part of Elias' evil cult trying to get Adam as part of of some scheme to revive their goals, perhaps posing as doctors and trying to break his grip on reality or somesuch, or they could perhaps go with completely new characters but set in the same world with the RotH mythos. They definitely left a few things unanswered, and with the way the supernatural works in the game ('aspects of the mind' and all that) it would work with other belief systems and cultures too.