TE/TC Will 2020 TE150 head stays fit 2018?

Redesigned for 2020, steel -> forged aluminum. Marketing (of course) says improvement. Anyone know if these will fit 2018, and what difference it might make (besides lighter wallet)?

OK here goes, get into a parts diagram from anyone of many sites out there and do a part number comparison, Rocky Mountain ATV, Appalachian and many others have full parts catalogs on their sites.
That will be the best most perfect way to determine OEM part applications.

Then if different materials of course my P/N comparo is nil. So understand why they are form fit and finish the same but different material, new flex characteristic engineered into the chassis, everything is computer modeled and tested. I personally would not mix and match those structural items due to what I mentioned above. everything is computer modeled and real world tested the OEM constantly adjusts frame flex moments with changes and upgrades for everything from basic feel to longevity as well as safety. Again, use what the parts application indicates for your model year.