While the merger has proceeded smoothly in other parts of the world, WPP still needs to discuss how much equity Dentsu will have in the new operation. Dentsu owns a third of TME, resulting from its joint-venture interests in the regional Dentsu Young & Rubicam network.
Austin, who was also CIA's regional CEO, said: "In the rest of the world, the merger is relatively simple, but in Asia it is a little bit more complicated.
We want to work with Dentsu as a key partner in Asia.
Another broad regional issue which will need to be resolved is the potential for client conflict with CIA handling LVMH and TME working on Chanel.