A Taipei Times article mentions the results of a new survey which includes a question about Taiwanese identity:
“…given the choice of identifying themselves as Taiwanese, Chinese or both Taiwanese and Chinese, the proportion of people identifying themselves as Taiwanese had risen from 37 percent in late October to 50 percent.
Those who considered themselves both Taiwanese and Chinese had dropped from 48 percent in late October to 38 percent.
The poll did not, however, show the figures for people identifying themselves as Chinese.”
I suspect this trend will only continue.