Excellent news. If you can get proper 4K positional tracking to work I and lots of people will be very happy.
Of all the real motion controllers I have only tried the psmove, (which I do not recommend you copy) but for my leap motion custom setup I like the psnavi for size, comfort and layout. It is pretty similar (but better than) the psmove.
A good analog stick is important in my opinion. Ambidextrous controllers are probably preferable considering the price/convenience of manufacture. Please don't make it too expensive. Nolo basically shot themselves in the foot by making it way too expensive, considering there are WMR headsets and controllers available for 200 dollars now.
So how does the new positional tracking system work? You've piqued my interest, this is the best news we have had in ages.