The person did not share any further details, but it's possible that New York City-based Beats 1 radio DJ Ebro Darden could broadcast at least some of his shows at the Fifth Avenue store once it reopens. Currently, he appears to broadcast from a studio in the Chelsea neighborhood of Manhattan.
The source describes the Beats1 booth as a "very unique area". Notably, the same person accurately revealed Apple's plans for its first retail store in Mexico prior to any official announcement.
No word yet on when the Manhattan store will reopen but it's likely to feature Apple's next generation retail store design. Stay tuned to iClarified on Twitter, Facebook, Google+, or RSS for updates.