John yes they switched to the 5200lb axels, however they stuck with the 3500 pound 4-Leaf spring packs that have always accompanied the 3500 pound axles.
Edit: ....and from THIS post by @Geronimo John, a tech from Dexter stated that the stock 1750lbs rated 4-leaf springs are under specification for a 6,000# RV trailer that is always loaded. On our 2023 the 4-leaf springs are already showing signs of flattening, so I agree with the Dexter tech that the stock 1750lbs 4-leaf OEM springs are under rated for our LE IIs, unless maybe for those weekend warriors that will just go to their local campground.