There is definitely going to be another Links game. I don't think it's be called Links 2K*. The 2K Sports is owned by Take-Two Interactive.
http://www.2kgames.com/index.php?p=news&ID=15
They bought out all the stock for Visual Concepts Ent. back in Jan 05, along with Kush Games. The Links series was made by Access Software Inc and Microsoft acquired them back in 1999.
http://www.microsoft.com/presspass/press/1999/Apr99/AccessPR.mspx
If you remember, Microsoft made a lot of golf games that were very similar to the Links series, but Access Software's Links series would easily outsell MS' Golf every year. So instead of fighting a losing battle, year after year, Microsoft just decided to purchase Access Software Inc. Problem solved. Now they have the best golf game on PC & Mac.
In any case the game will most likely be called Links 2006. I think the game is already in the works, but probably won't get announced until next years E3, if not sooner. Hopefully we'll see an XBox360 version as well with at least 15 courses, lots of modes, tournaments, rankings and game challenges.
Tiger Woods 06 isn't a bad game. It's not very realistic though. I think the Gamebreaker feature ruins some of the fun. It really doesn't know if it wants to be a sim or an arcade golf game. I've played about 12rd of TW06 and have already gotten 2 hole in ones and about 10 eagles from the fairway. I average about -9 a rd. The tournaments are tough only because the computer creates a score around your score. So if I shoot a -11 under, at least 10 computer players will shoot the same or higher score, which is BS. If I shoot a lower score, so will the computer controlled player. This makes it tough to win all the tournaments, but also makes it unrealistic. The other problem is control. It's way to easy to hit the ball down the middle of the fairway. Where as with Links, if you are slightly offline the ball will draw/fade in that direction. Doesn't happen in TW06. I think I've miss about 4 fairways in 12 rds.
Oh well. I can't wait for the next Links game for the PC and XBox/Xbox360. Hopefully something will be announced soon.