She's just being Miley.
UPDATE // FEBRUARY 15:
It's not much, but a tentative release date has been confirmed by RCA execs Peter Edge and Tom Corson. In a new interview with Music Business Worldwide, they confirm several projects are taking precedence in 2017:
EARLIER // FEBRUARY 7:
Katy Perry just announced a comeback. When will Miley?
New RCA priorities in 2017 include 18-year-old Texan Khalid, All My Friends singer Tinashe, Nigerian One Dance collaborator Wizkid, hip-hop artist Goldlink and band Muna – while we can also expect new records from Bryson Tiller, Pink! and perhaps from Miley Cyrus, who’s started work on her RCA follow-up to Bangerz.Very clever to throw in that magical *perhaps,* but don't toy with us! Honorable mentions go to Pink and Tinashe.