I just found this news on Tiernan's channel: TheBookTuber on Youtube the day before the first cover reveal, I'm super excited at first and skeptical at the same time because the existing US covers are good but Rick Riordan quoted "WOW" on one of his tweets and it was made by the same artist so why worry?
I think getting a fresh wardrobe change every decade is not unreasonable. :D Plus the news ones are by John Rocco, the same artist.The covers are revealed on Percy Jackson Facebook page from Feb. 17 to 21 one book per day. Yes waiting is annoying but when the covers are revealed gods forgive me I'm gonna say goodbye to my old one.
— Rick Riordan (@camphalfblood) February 13, 2014
Awesome isn't it? And yes the covers are all connected. Are you with the old covers or the new one? Which cover looks best? I'm with the 4th one just look at Kronos there.
Since ppl are asking: the new PJO covers will be available starting April 8 (US market) for all five paperbacks. Boxed sets = early May.
— Rick Riordan (@camphalfblood) February 20, 2014