The latest rumors making the rounds were EPSN2-HD this week, TNT-HD in mid-January, Starz-HD in March; then nothing more till SpaceWay is operational. It didn't seem like a terribly bad rumor, though I could do without more sports channels, personally.
Considering many of the HD nationals are still upconverting material on occasion, it's a shame that they're not able to stop that practice; transmit 480p when SD material is on the air and 1080i/720p only when true HD material is aired; and allow for some more flexibility in how channels are mapped so things can be shifted around more readily to take advantage of the lack of 24-hour true HD material on these channels right now.