we never even got an alloy version of the gen 4 which was super disappointing as i've ridden the 9.8 g4 XT and it was awesome.
I wouldve bought the alloy version and upgraded as trek are still stuck on the low spec alloy builds for most of their bikes.
I ride way to much sketchy stuff in the out back of NZ my ebikes often end up slid down banks etc - not a place you'd want to be putting a carbon bike.
I hope we see a full refresh and alloy bikes added, however seeing as when the gen 4 came out it made sense not to gen 4 alloys as they cant even sell the 22's in nz... we are so overstocked on trek bikes here its insane.
Giant has a hold on that trance/reign segment here as offer really good value alloy bikes including a factory suspension version.