Yep, the hype is now gone for the new JL, the only thing now going up is the price, sales are going down down down. LolLook at Sept 2017 vs Sept 2018 sales. About flat.
15,714 vs 15,983 wranglers sold
Look at Oct 2017 vs Sept 2018 sales. Down a tiny bit.
13,391 vs 13,318 wranglers sold.
This is a pretty abrupt deceleration in sales from previous months. There could be any number of reasons.