You probably won't believe me, but I have a very reliable source that gave me a bunch of information about #R8.
From what I know Rih was supposed to release the album as a surprise along with FourFiveSeconds, but she wasn't satisfied of the whole product so she decided to re-record it and release 45S in the meantime.
Bitch Better Have My Money is a new song she recorded like 1 month ago, so it belongs to the new bunch of recorded tracks and it represents better that 45S the direction the album is gonna take.
She's still in the studio but she's almost done. The album is supposed to be released on Tidal + iTunes in 30/40 days, and then be physically released two weeks later. I'm expecting it at the end of April, but we'll see