John C Klensin wrote:
Or we could drop it.   My instinct at the moment (i.e., I reserve the 
right to change my mind) is that dropping it would be better.  
+1.
Having a specification contain language about hypothetical future capabilities 
is almost never useful and often turns out to be just plain wrong.  The only 
benefit of reference to the future is when the specification contains pedagogy 
about extensibility by way of showing how to add capabilities.
A spec should specify.  And it should explain the specification.  Predicting the 
future does neither.
d/
--
  Dave Crocker
  Brandenburg InternetWorking
  bbiw.net