Nefarious Foes

I logged on this morning and saw that there's a new tournament in the announcements that starts tomorrow. I would guess it's the weekend PvP. It's called Nefarious Foes, runs from the 14th to the 16th, and states "No heroes allowed!" No other information yet, but it's interesting that they're "announcing" what the next PvP is (unless it's a mistake).