One quote I read from someone who supposedly works at Toyota is that the Land Cruiser will return to NA as a "cheaper, more off-road oriented model". What that means, I don't know. My assumption is that it would be a mid-size SUV based on the Prado/4Runner/GX platform. Something like the FJ Cruiser.
I've been a part of the Toyota online community for over two decades and have owned two 4Runners (current DD is a 2000 V6 5spd Sport). The appeal of the 4Runner has always been its reliability, and I've seen more than one Jeep owner jump ship for a Toyota. If Ford can't get their issues sorted out with the Bronco, we might see people jumping ship to Toyota there too. The bar is set high for the next gen 4Runner and Tacoma, and I hope Toyota can deliver with what will most likely be 2.4T and 2.4T hybrid drivetrains. I'm skeptical.
As a 4Runner enthusiast who has done a bit of off-roading, what I would like to see in the 6th gen 4Runner is this: A 4.0 NA V6 (or maybe a TT 3.0 V6 or single turbo 3.3L V6 diesel), locking diffs front and rear, 7 speed manual with close ratio 1st and 2nd gears, optional factory rear tire carrier capable of 35s, factory 33" tires as an option, the ability to fit 35s with minimal to no trimming, a fuel tank that doesn't hang so low, and built-in under floor storage in the rear.
The new Land Cruiser could build on that platform and add a removable top and retro styling. And if Toyota really wanted to wow people, they could go with the 70 series solid axle front end (not very likely). Or, who knows, maybe Toyota will finally redesign the 70 series and just bring that lineup to the US. I'd love a new version of the Troopy. I'm sure the van life crowd would love that too.
The TRD Pro models are all a gimmick. Dealers are asking ridiculous prices for something that is little more than an appearance package. A TRD Off-road Premium 4Runner is a better value, and it even has the optional KDSS that isn't available on the TRD Pro. Toyota should really give the TRD Pro lineup the Raptor treatment. A TRD Pro Tacoma with a factory long travel front end, 35s, and a 400hp 3.5 TT V6 from the Tundra would be a hot seller.
Just my $.02.