According to the Twitter account of u2gigs, a website dedicated to chronicling U2's concerts, Bono told the crowd, "We've been on the road for quite some time, just going on 40 years, and this last for years have been really something very special for us. We're going away now."
Author: Dave Lifton - Ultimate Classic rock
Seems unlikely that U2 would just shut things down without the traditional "farewell tour" like so many other bands. One thing is certain - the END will work on getting more to this story - check back in with me on any updates: firstname.lastname@example.org