In Germany, MTV is promoting the show at "Rock Am Ring" festival with a 2 second clip of Axl and Slash from 1992/93.
Plus, in all TV spots, GN'R are mentioned after bands like Korn, Placebo and some random german bullshit acts even I have never heard of.
That's all promotion the show gets.
The concert promoter is obviously not intrested in promoting the band. They get a "one of many other bands" treatment, and though it's not 1992 anymore, I think they deserve a bit more than that.
Very few promo, very bad promo.
Same can be said about the concert in Nijmegen (Netherlands) that I will attend. On their website, the promoters were advertising the show with a pic of Slash and Duff! Great promotion...