I believe that Taiwan will eventually merge with the mainland. Perhaps via the two-systems one China route that Hong Kong did. The claims of mainland China on Taiwan are understandable and I don't fault them for their perspective on the issue.
Is the United States really willing to go to war with China over this? I don't think so. Are Thailand, Vietnam, Japan, South Korea, the Philippines willing to go to war with China? China's desire for Taiwan far exceeds the willingness of others to fight them over it. This is especially so since China is taking the long range approach. They aren't going to outright invade Taiwan. It's akin to a death by a thousand cuts. Slowly, but surely, they inch their way to control.
Is the United States really willing to go to war with China over this? I don't think so. Are Thailand, Vietnam, Japan, South Korea, the Philippines willing to go to war with China? China's desire for Taiwan far exceeds the willingness of others to fight them over it. This is especially so since China is taking the long range approach. They aren't going to outright invade Taiwan. It's akin to a death by a thousand cuts. Slowly, but surely, they inch their way to control.