My gut is that it goes the other way around. People who desire to work on the Big Cool Sexy New are often less motivated by peers, and more by personal drive, as by definition most of their peers won't know what the hell BCSN even is. Unless the person in question is working in a 100% BCSN shop, in which case there's likely to be fewer maintenance tasks in the first place as the codebase will be fresher.