u-he's latest (which requires a Zebra 2.5 license) comprises a soundbank of 400 patches by Hans Zimmer and Howard Scarr, as used in the soundtracks for The Dark Knight and The Dark Knight Rises, and Zimmer's custom Zebra 2.5 mod, ZebraHZ.
ZebraHZ adds quite a lot of new stuff to the original - stuff that's ultimately destined for Zebra 3. It's by no means a rewrite of u-he's classic semi-modular at this point, but four polyphonic compressors (great for hard-transient patches), a Resonator module (emulating the Polymoog Resonators unit) and an extra filter section pulled from DIVA certainly take the Zebra sound to new places.
The patches add up to one of the most impressive, beautifully designed sound libraries we've ever heard. Making great use of the mod and pitch wheels, they're epic, evocative, highly playable and ever-so-Hollywood.