This fest will certainly sell out.  BUT, as I said before, I think that Jorn was a biiiiiig let down considering all of the options out there.  I guess my feeling is that if Jorn, as a band and given a unique set or not, is not even a headliner in Europe, then how/why can he be here?  Jorn w/ Masterplan would have pigeonholed the audience, but it would have said "HEADLINER" but Jorn alone is inconsequential for the most part to anyone outside of Prog circles.  I appreciate the uniqueness of a set as much as anyone, but replacing a headliner with Jorn is not the best choice, IMO.  Had a 3rd or maybe even a 2nd dropped off, this could have been gotten away with a little bit but not a headliner.   Again, this will still sell out, but it will take a LOT more time.
Now, as always, flame away at my heartfelt opinion.