Hey now - he didn't just say modern, he said *more* modern. That could mean anything between the middle ages and present day! Who wouldn't love sneaking around in knee-length pants and a ruffled collar for Thief: The Renaissance? And you certainly know it'd be fun pulling off a great train robbery in Thief: The Old West. Personally, I can't wait for a chance to loot bombed out homes and occupied military bunkers in occupied Normandy for Thief: D-Day 1944! That's just about the only WWII-themed FPS left to play, right?
Dammit, I wanted to say that. Good post.
There used to be a TV show in the 70s about Raffles the gentleman cat burglar, set during the 20s (ish). I'd play that.