I will be very surprised if Anderson doesnt win a major title this year, he has matured massively over the last couple of years and is now a consistant 100+ player, even in the longer format games.
Lewis seems to have taken a couple of steps backwards since winning the world title, and Wade is also going through a weird time where half the time he doesnt look interested.
At the moment it looks like the main titles will be shared between Taylor, Anderson, van Barneveld and maybe Whitlock.