Complex sentence: In October 2014, he announced his upcoming 14th studio album will be called "G.O.A.T.2" with a release window of 2015, however it had been put on hold and has yet to be released.
Split into simpler sentences: In October 2014, he announced his upcoming 14th studio album will be called "G.O.A.T.2" with a release window of 2015. However, the album had been put on hold and has yet to be released.