I spotted this little tidbit in the middle of an RPGFan editorial.
As most of you probably know, the "Dragon Quest" series is the grandfather of Japanese console RPGs. When it came to bringing the games over to America, Enix found that there was already a pen-and-paper RPG over here with that name. So Enix was forced to come up with a new name, and decided on "Dragon Warrior" (Although I've heard some stuff about Nintendo of America actually being the one to come up with that particular name for Enix).
The company that made the pen-and-paper Dragon Quest was bought up by TSR.
Well, it seems that TSR hasn't made a "Dragon Quest" game in over 10 years, so the US Patent Office declared their trademark on the name to be "abandoned".
The name was immediately dived upon, and trademarked in America by a little company you might know called Square-Enix.
Personally, I'm not convinced that the "Enix side" of Square-Enix gives a damn about Dragon Quest/Warrior in America anymore, but it seems possible that Enix might use this as an opportunity to give the series one more try. At the very least, if Dragon Quest 8 comes over to America (and isn't prohibited by SCEA for being "niche"), it might be as "Dragon Quest 8".
So "Dragon Warrior" is probably a piece of history now. Well, it kinda was before. But now there's more dirt being piled on it.