As it was writen on the band' official site,
“Hi there! Something unexpected happened… I got sick as a dog when we arrived and performed our first festival for this summer among the fjords in Norway with 40 degrees of fever. (…) Back home from the festival I had to go straight to the hospital from the airport and they made me stay the
night. They found a virus value of 130 in my blood (the value is normally below 8, in a normal condition…). I really don´t know what kind of virus that was, but I tell you it was pure hell. …I´m on the heaviest possible medication right now and I´m starting to feel good enough to pick up the guitar and write some shit.. Let me also clarify some things about the guitarist situation. I know that some of you people have seen on some website that we have confirmed Daniel Antonsson as the new guitarist of Soilwork. It´s true that he´s been touring with us and we like him very much both as a human and as a player but we have NOT confirmed his spot in Soilwork. We have decided to go slow with this and really take our time before we make any decisions. We´ll keep you updated on that story, nobody else.”