Good news for fans of EXO as they are apparently working to promote with a follow-up song! Meanwhile, fans of f(x) will have to wait a little bit longer as no comeback date has been determined as of yet.
A rep from SM Entertainment stated through a phone call interview with Kuki News, "EXO is planned to return with a follow-up song. After promoting 'Wolf' for several more weeks, [EXO] is set to release their follow-up song."
The agency also commented on f(x)'s possible comeback and revealed, "We are currently planning for their comeback but we are still looking into a specific comeback date."
source: Kuki News + akp