Unfortunately, CS has said they won't be porting it. But that's not necessarily a bad thing. The demand is there, and the FSX version is fairly old. I think they'll be making a new one like they did the 757. They never said we aren't getting it just that they're not porting it.

As for the discount question, even if they were porting it there likely wouldn't be one. There wasn't one from the L1011 or 777. Previous P3D 737 owners got the base pack free but I'm pretty sure the expansions had to be bought again. I don't approve but its their decision.