Basically, Billie is now (on YouTube and Snap) posting something about each track from WWAFAWDWG each day, as a countdown to its 5 year anniversary. What is going around as a theory is that because it is also a Friday and it seems to be a big countdown almost for something else, some are suspecting that she'll either drop a single from the new album or announce something about BE3 then. Of course, this is all just discussion and theories, but it does kinda make sense.
Firstly, you may have seen the post that I did once about how the album could be released on her bff Zoe's bday. Well, March 28th is exactly 3 months before that, so 29th of March is very close.
HTE was released three months after it was announced, and I think WWAFAWDWG was released two or three months after it was announced?
Anyways, don't take this seriously, it's just a theory that I wanted to share. I'm hoping that something will be announced on 29th of March tho.