It is fun to phophesize...
It looks to me that it will certainly be better bike the the current 450x with a license plate on it but the mid/long range suitability remains to be seen.
Of course the cool titanium fuel tank will have to be swapped for a big plastic unit and the stock seat will have to go for long distance rides, unless one likes having chronic monkey butt.
i am not sure of the wisdom of putting a $500 LED headlight on a dirt bike, either. I am sure someone will offer a conventional unit to replace the smashed original.
The largest question will be the engine durability. Will adding a third piston ring and de-tuning the engine to 25bhp do the trick? My guess is that most owners will not be happy with the stock performance and will jack the power back up, resulting in a bike that will be a compentent trail bike but with the durability of a KTM.
Overall, I think the new bike will be best suited for a guy who lives near the trails and that is the reason I will probably buy one. I think my Queen will remain my adventure machine.