I can't help you much but I do know that major changes to a product line usually comes in the fall of the year. The 2015 models they are producing now will have very little, if any changes from the 2014 models. The 2015 models they produce in October of this year might have significant differences from the early 2015 models.
To give you and idea of the significant changes that can be made here are two photos of a 2008 Wildcat fifth wheel.
This was my 2008 Wildcat built in June 2007.
This is a 2008 Wildcat built in November 2007. Big change on the front cap in both design and graphics.