Rolling Stone Magazine reports that The Rolling Stones are "planning 18 concerts in North America this year."
Billboard reports that the Stones "grossed a total of $38,687,010 and sold 73,702 tickets" for the five shows they played in London and New York / New Jersey 2012... and "At this point, it seems that fewer than 20 dates will be played in North America."
Serge Pizzorno of Kasabian has added fuel to the rumor fire during an interview with MTV News UK by stating that The Stones will be playing the Glastonbury Festival in England the same last weekend in March that his band will be playing Hard Rock Calling in London.
Sources: Rolling Stone, Billboard, MTV News UK