An increasing number of financial firms from Hong Kong will make a beeline for the Qianhai special economic zone as a soon-to-be launched wealth management scheme brings in new business opportunities, according to a senior executive of the free-trade zone.“The wealth management connect scheme will be the next engine to drive Qianhai’s growth,” Witman Hung Wai-man, principal liaison officer for Hong Kong at the Shenzhen Qianhai Authority, said at an annual media briefing on Tuesday.“It will….