This northern section of the river is what's going away, to be replaced by a tighter S curve with the train trestles and waterfalls before curving towards the new Indian Village. And in my opinion it was the most boring and most pointless portion of the trip.
That Indian Chief is featured on the new WDI artwork, between the trestle and the river on a more prominent rocky ledge.
The trestles look like a grander and more finely designed version of this old Disneyland classic that was along the river from 1960 to 1998;
Cascade Peak. Imagineering is MUCH better in the 21st century at doing big rockwork (See: Cars Land, 2012), so the new rocks and waterfalls and trestles won't look as clumsy as this 1960 feature did. This photo is from 1996.
How many young'uns here even knew Cascade Peak and its famous "Twin Sister Falls" was even a thing that got torn down almost 20 years ago in '98?