The business linkages between the mainland and Taiwan are substantial. Hard to believe that nationalist loyalties or concerns about moral freedom will prove equal to fear of loss of profits on the mainland. Remember the line, in a different context, about capitalists selling the communists the rope .... So, slow accretion of power and corresponding restraints on Taiwan. As to "taking over," my guess is that CCP will start with Qinmen and Matsu. Anyone reading this who is pretty old will remember those names ...