I just read in the German "Keys" magazine, that Hans Zimmer has
invested in the company "Wizoo" (the guys who developed The
Grand etc.) to develop a new high-end sampling-system for
orchestral samples which will surpass everything currently
available. He either has already or will be producing the samples
himself, the hard/software-system comes from Wizoo.
First of all this seems to be custom-made for him, but it's use will
also be licenced to a couple of other composers who have enough
budget to do so...