I was really surprised. It sucks, Damian is one of my favourite singers. From his website:
"Damian Wilson's statement regarding the departure from Threshold:
Unfortunately this is not a mutual decision, but I respect it. After I had recorded the album and committed to the tour I was informed that Threshold were going to continue on without me. They have every right to make this choice, although it is difficult to part ways with a group of people you’ve shared so many experiences with.
I really enjoyed the past decade recording and touring with Threshold and wish them all the best for the future, with the hope we might work again on projects somewhere down the line.
The label Nuclear Blast are amazing, and with the wonderful support of the fan base the whole journey of being the frontman for Threshold has been fantastic."