Perhaps I'm prejudging the show without having gone to it yet, but as a longtime Neil Young fan...I'd be happy to hear 30-40 mins of his new stuff mixed into a 2-2.5 hour show. I would welcome it with open arms. Sure, he's had high and low points in his career, but he managed to make great albums in the 70's and 90's, and even one in the 80's....So it's not that his new music would be irrelevant.
But the fact remains that he has a long storied career and I want a balance of materials from various parts.