I agree with most of what you said. I think the LS should be something akin to the audi grandsphere concept car (maybe slightly higher, to appeal to the SUV crowd). Maybe releasing that flagship MPV the LMV makes sense, but by all means add more to that segment. It could be almost like a standard and extended model LM. I think the LF1 concept was trying to be Lexus's version of an Audi Q8 or Porsche Cayenne, and I still think they should try and target that segment, in addition to my idea of what an LS could/should potentially look like. They could base the two cars probably on the same platform (??).
Also on top of those models, having the LX focus more on luxury rather that offroad should be something for Lexus to consider. It can still have offroad potential, but they need to start properly gunning for Range Rover, X7, GLS, and Escalade stateside. This means making it truly luxurious like the other two, offering better amenities, and a lot more space. The LX is tiny compared to it's competitors right now.
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