I can't say for sure, but when Seasonal Annual Passes came out, I asked about renewing from Power to Seasonal. They said that since it was new, there was not a renewal rate. The next year though I was able to downgrade my family's passes from Power to Seasonal and only paid the Seasonal renewal rate. You can call the AP line and ask, but based on my similar experience, I would think you could do that. Good luck, and please report back here for others wondering the same question.