The record would be the follow up to his second studio album Blonde and his visual album Endless, both released in 2016.
In the short post, the 30 year old Californian said "'Well! I made the album before 30. I just ain't put that bitch out!"
Fans believe he is referring to a screenshot currently circulating on Reddit's Frank Ocean subreddit. The screenshot is of a deleted tweet from the artist, in which he promised 5 albums before he turns 30.
If this is in fact the case and his debut mixtape Nostalgia, Ultra and Endless are included, the new release will in fact be his fifth.
Ocean's recent visual essay fuels these rumours, particularly his comment that "If you liked two thousand and seventeen then you'll love two thousand and eighteen."