You'll find out about the same time us dealers do.....at the Dealer show next summer. Harley does a very good job of keeping their plans a secret. Although, given all the changes in 07 and 08, I doubt if anything earth shattering will be happening in 09
I heard that H-D will introduce two new models for '09 -- the Rocker and Rocker-C...Oh wait a minute, maybe is will be 2010 before we see these models.
Start searching the Net in about March, something always leaks, my dealer was shocked at what I knew before he did. Found the Rocker and Fatbob in about April I also had all the specs on my 08 Roadglide before the dealer meeting. In 98 I ordered a new FXDX with the then new Twincam before the dealer even knew the bike exsisted.