you are assuming quite a lot again - in fact, European version will have very similar dash in lower end specs, one shown in the Frankfurt is top spec that wont sell in more than 5-10% in Europe. And even in "X" model, Nav/Bluetooth is actually optional.
US has a lot more chances of selling nav than Europe. In Europe doubt it will be availabe on anything but top engine either, which wont be sold in half of Europe.
The fact that we are talking about it pretty much says that it would be quite hot .
Again, I would not assume too much... It would not be too much to expect Limited packge like all of the new Toyota's have, with top equipment prevously unavailable in the class. Currently, Nav is offered with Prius, Camry, Highlander, Avalon, 4Runner, etc, etc, not having it in Rav4 would be quite an suprise actually.
Forget internal competition - with Avalon Limited, that has more equipment that ES, Toyota has shown that it does not care if its models compete against each other, feature wise.
Last year, we would probably argue that Avalon wont have engine more powerful than ES, and more technology than GS300...