Over in the UA Forum, it looks as though effective tomorrow (September 28), UA MP members will only be able to book award seats on LH 90 days in advance and on ANA 60 Days in advance:
http://www.flyertalk.com/forum/showthread.php?t=357909
Nothing has been mentioned on this forum, but I can't imagine that whatever policies are being imposed will very quickly spread to the rest of the *A.
So, if this does happen, our DM will quickly become even less useful. Forget those trips you want to plan a long way out.
Anybody heard anything similar from US agents?