Best to go to their website and keep an eye out for when they have their brochure available to download. Your question is a bit premature as it seems vendors, musicians and entertainers are still in the planning process. As of today the festival is 111 days away. Maybe check for brochure in 20 days (3 months away from the festival). Do book sleeping accommodations ASAP if you will need them as they book up very early.
Usually there is but to get a better idea of what to expect, I usually check the website from late May to mid June to get a better feel of how the year's events and activities come to fruition. Some vendors don't put their application in until closer to the event dates. Either way, hope this year's event will appeal to you!
Thanks! Your answer is awaiting moderation.