Not likely, players (not superstars) can already make more money in Euroleague yet everyone given a choice wants to play at the highest level, which is NBA. Superstars even more so, Kawhi Leonard won a title in Toronto but chose to go back home in LA, for less guaranteed money.
You may overestimate how valuable those billion viewers are, most of them don't have the money to buy anything.
Also, there are a great many cultural and economic reasons that foreign players generally avoid playing in China's existing professional sports league. Political oppression is just one of those reasons.
