Not much is known about it as of now.
This could be either a single or the EP they've been promising for months now.
The title was guessed by fans who saw the numbers in the promo video (16 19 01 12 13 19), and counted which characters in the alphabet each of the numbers should represent.
16 = P
19 = S
01 = A
12 = L
13 = M
19 = S
Reading "Psalms".
+