I'm not convinced he's leaving either. As others have said, with Burnley you get one season and you're back in this division. Maybe, just maybe Dale thinks he can help this team go up and would be able to secure himself a better deal with a team (us)more likely to make a fist of staying in the Premier League?
Let's hope your right. Although having said that, 6m+ offers would be far too good to turn down imo