Megadeth just released the song "Headcrusher" for free download on Roadrunner Record's Official Web site. "Endgame" will be released on September 1. Lets hope Dave can conjure up some of that energy from the days of old.
UPDATE: Just finished listening to the track all the way through and I like it! I noticed some classic Megadeth sounds from the days of old, even in some of the lyrics from Dave Mustaine. Seems like it should at least surpass United Abominations!