WindSeeker is pretty dull. It's big and slow, and comes short of a thrill for anyone who isn't afraid of a good coaster. Not a must-go reason for Wonderland this year.
Behemoth is still there, and it's the best roller coaster I have ever been on, ever.
Make sure you use your AirMiles or MasterCard for $20 off admission (doesn't include free second visit though)
The rides have all been renamed (although I refuse the recognize the new names), and to quote another Yelper, there is a lack of consistent themes, and the park has "lost it's focus".