Chase,
As long as LH doesn't know if the Nimby's manage to place a ban on operations in FRA between 00:00 and 05:00, I don't suspect LCAG will order much of anything. If the Nimby's loose, as I suspect we all hope they do, my money would be on the 777F instead of the 747-8F. It's the natural successor to the MD-11F, and LH left the outsize cargo business quite a few years ago, finding the MD-11F and loads no bigger than what a 20ft pallet will hold being a more cost effective proposition.