Even as the fourth season gets set for UK broadcast on FX, HBO is ramping up for the start of the fifth year of True Blood, with a teaser trailer that promises that hints at dark things to come.

“In Bon Temps, nothing stays buried forever,” runs the slogan, which would indicate that there are some unpleasant people on the way back – including Denis O’Hare’s Russell Edgington. Recent casting news has included the arrival of Sanctuary and Twilight‘s Christopher Heyerdahl, and Giles Matthey turning up as the fairy Claude…

Watch the trailer here.