(Reuters) - Departing Hewlett Packard Enterprise Co (HPE.N) CEO Meg Whitman will become chief executive of DreamWorks co-founder Jeffrey Katzenberg’s mobile media firm NewTV, a move that places her back into unchartered territory. One of the most powerful women in U.S. business and a former candidate for California governor, Whitman will be moving into a nascent sector much like when she took over eBay Inc (EBAY.O) in its early stages and turned it into a multi-billion dollar business.