Are there any plans to include uPNP in a future version?

I am pretty sure I know the risks, but this is what I'm trying to do, so
what is the right way to do it?

 

I have a game system that needs ports forwarded to it, but each game
needs different ports.

 

I could put it in a DMZ, but I have a cable modem with one dynamic IP
address, so I can't simply forward all ports for one address to the
machine in the DMZ.

From what I understand, I need uPNP.  Is there another way to do this?

 

Thanks,

tom