Each line will probably be a little different so a delay like we are seeing on the Eagle TT line may not be the case on the Eagle HT, Whitehawk or JayFlight line.
We ordered in June, missed the cutoff for our floor plan by a week and were told 8-10 weeks. 9 weeks into our window, they then told us 20 weeks! At this point, I might just end up getting a 2018!
I would try and contact someone directly at Jayco to see what the current backlog is in regards to your particular model and go from there. Good Luck!
2015 GMC Sierra 2500HD SLT 6.0L SRW
2017 Jayco Eagle 330RSTS (on the way)