It's only a rumor, but GNR tour dates have leaked.  This is for the ongoing Chinese Democracy Tour, not the rumored reunion tour. 

*** RUMORED DATES ***

Apr 07 - Atlanta, GA - Arena at Gwinnett Center
Apr 09 - Orlando, FL - UCF Arena
Apr 10 - Tampa, FL - St. Pete Times Forum
Apr 12 - Raleigh, NC - RBC Center
Apr 13 - Columbia, MD - Merriweather Post Pavilion
Apr 15 - Uniondale, NY - Nassau Veterans Memorial Coliseum
Apr 16 - Boston, MA - TD Garden
Apr 18 - Newark, NJ - Prudential Center
Apr 20 - New York City, NY - Madison Square Garden
Apr 22 - Uncasville, CT - Mohegan Sun Arena
Apr 23 - Pittsburgh, PA - Petersen Events Center
Apr 24 - Philadelphia, PA - Wells Fargo Center
Apr 28 - Detroit, MI - Palace of Auburn Hills
Apr 30 - Toronto, ONT - Air Canada Centre
May 05 - Cleveland, OH - Quicken Loans Arena
May 07 - Milwaukee, WI - Marcus Amphitheater
May 08 - Chicago, IL - Allstate Arena
May 09 - St. Paul, MN - Xcel Energy Center
May 19 - Vancouver, BC - Rogers Arena
May 20 - Seattle, WA - KeyArena
May 22 - Portland, OR - Rose Garden Arena
May 23 - Boise, ID - Taco Bell Arena
May 25 - Salt Lake City, UT - Energy Solutions Arena
May 26 - Denver, CO - 1stBank Center
May 28 - Dallas, TX - Verizon Theatre
May 29 - Houston, TX - Toyota Center
May 30 - Austin, TX - Frank Erwin Center
Jun 03 - Phoenix, AZ - Comerica Theatre
Jun 05 - Los Angeles, CA - Nokia Theatre

How many of these dates will be cancelled, postponed or start 3 hours late?!

Keep listening to Q103 if these dates/tour will ever be confirmed.