At first I thought she was spelling it out, but now I feel like she is just giving us the letters in a random order for us to figure out an anagram...The only RAO word I can think of is Raoul lol.
Of course, it could be the first letters of words or something but...I really want her to have another one word album title.
I think it's backwards, so it will end up being ___OAR
Maybe "ROAR" ? When you peak at the "Recent images" one her twitter page, the pictures go by most recent, so after the next letter is uploaded, it will say [x] [o] [a] [r] (replace x with the actual letter)