I wanted proof of the latter. Yu Suzuki writes the stories of Shenmue, so Sega owns it? If they do, then what's the problem with making the game? I guess they just can't afford it. Oh wait! That's right! You basically said they were the richest company in the world. I suppose now we can expect a new console, a new Sonic Adventure game, and a new Shenmue game. That's what ALL, I repeat, ALL of the Sega fans want.
Well, Shenmue is Sega's Trademark. We'll start with that very basic and easy fact. They own the rights because they paid for the game. Yu Suzuki doesn't own Shenmue any more than Ridley Scott owns Alien.
Actually, here's a fun article from 2012 from Eurogamer. In it, Suzuki discusses how he might go about getting the rights to Shenmue from Sega for his YSNet studio. That took ten seconds on google.
http://www.eurogamer.net/articles/2012-01-04-suzuki-we-can-obtain-shenmue-license-from-segaThe problem with making the game, Spock, is that they're a company whose job it is to make money for themselves and their stockholders. Shenmue did not make money on the Dreamcast. It most certainly will not make money now. It would be stupid to make the game, to make a new Dreamcast, to make a Skies of Arcadia, to make a new Jet Set Radio and so on. They've toyed around with all those ideas before (except a new console - that's never been on the table, to my knowledge), and the money just isn't there to be made.
Outside a very vocal group of people, no one gives a shit. A new Shenmue would be trashed in the press and would bomb. Hard. And people would be mad at Sega for "ruining" the franchise.
That's all there is to it.
Incidentally, your sarcasm doesn't become you.