I forgot to mention in my original post that when Katatonia was finished Leaders they played the main riff to Demon by Entombed to close out their set. I'm not sure the connection between the two bands, aside from being from Sweden, but it was probably my favorite part of Katatonia's set.
01/18 & 01/19 -- Godspeed You! Black Emperor and Neurosis (in Montreal)
02/08 -- Dark Tranquility
04/11 -- Black Sabbath