Potential and something you (we) assume. Hard to see something like that.
My point is - the alternatives should already be out there in production models or need to be very soon.
If you look at what there actually exists today and what I want as a Lexus customer:
The sedans are out. My Lexuses have included several GS 450h. The Fs are out. Have owned the RC F, GS F and LC 500. The SUVs. Would serve my current needs better. NX is nice (owned 2) but not for me anymore.
To conclude, I am not interested in something bellow the current RX. I don´t care if the new Lexus models are called xxx or yyy. I want something above the current RX. There are alternatives to Lexus out there and the time is running up for me.