Humble predictions...
Rather will focus on the superscript "TH" and identify a typewriter of the time that could do it, ignoring whether or not a National Guard base would have such a machine. He'll also discuss how other machines of the time could support some of the other features that have come under scrutiny, but not discuss why somebody at the NG would go to such lengths to use features that were complex at the time.
He will complete ignore the issue of kerning, which seems to be the most damning.
He'll protect his sources and refuse to discuss where he got the memo and who his "experts" are who confirmed authenticity.
He'll drop a hint that this is all another VRWC.
He'll say the Bush White House/ Karl Rove is behind it.
Anyone got a bet pool going? :)