The FX didn't replace the QX, we still have a QX, the 56. I think the QX4 went out when the FX came in so I can see how the conclusion can be drawn that the FX replaced the QX4, however I think they serve two different markets. This would explain why Nissan still sells Muranos and Pathfinders.
I would like to see the QX4 return and as mentioned in my other post an Infiniti version of the Titan!
For Nissan the Pathfinder fits right in - continuing their trend of styling cues from one car to the other, you can tell they are related, or have the same "heritage" I'm sure is what they want consumers to think. Look at the Cadillacs as a prime example.
For Infiniti I think it would be the wrong thing, they are just now starting to build a sense of consistancy between car to car to help define their identity. To throw the boxy new Pathfinder with its sharp edges would not compliment the curviness of the FX, M concept or redesigned Q. It's like they throw things at the wall and see what sticks for a little while and then away it goes. See -> G20, I30, M30, QX4. Consistancy and stability in the model lineup would help all of us with long term resale value, I think.
In all honesty Shady, I used to agree with you. QX56/Armada looked like they took 3 different vehicles and put them together. I really hated them, that is untill I spent some time sitting and looking at them at my local dealer. That blue grey color looks great! I really thought they were an eye sore but for some reason I am turning around. Don't know why but I am starting to like them. It grows on you.