I am sure that GM is only eager to get the DTS, Lucerne and Bonnie GXP off the books once and for all here soon so they can finally close that chapter in the N*'s history and focus solely on the "new" RWD motor from here on out. We'll see how it plays out over the next 2 or 3 years, because the next car on my list is a 2004 XLR. But Im not going to get 30k in debt on a car that's going to be no different than the 4k Deville at the carlot downtown. For now, I have very very optimistic feelings about the new motor.
If I had unlimited money, my dream "Tim Allen/Jay Leno" style project would be to convert a 2003 STS, regardless of cost, to a RWD Smallblock layout, or a RWD Northstar layout. Anything can be done with the right amount of determination and cash.