Plans? - Multiple Listeners

I was wondering if there were any development plans for the future that 
include modifying the OpenAL system to handle multiple listeners instead 
of just one.  There have been discussions about compatibility with 
consoles such as the x-box, but OpenAL lacks a feature that most console 
games use currently.  When playing in split-screen mode, the audio will 
be rendered from the locations of each of the players.  I'm not sure if 
it is correct to then mix this audio or pipe different listeners to 
different speakers.  On the new X-box systems it is configurable what 
audio comes out of your x-box live headset (if you use one) which means 
that each player could even have their own set of speakers (headsets).  
The details are not really important at the moment.  I was just curious 
if there were plans for developing this feature in the future or not and 
if so, what the time line was.
Thanks.
--Chris