China will never take over Taiwan. Not in the next 100 hundred years.The Indonesian fishing vessel issue was not PLAN related but a typical maritime issue. No intended aggression from China.
The Vietnam and SCS issue has been there for a long time and this is, at this point, just routine.
China will eventually take over Taiwan, which is not really a country but part of China held by a former government of Chinese mainland. This may happen sooner than later.
China is no Russia . Russia took over crimean peninsula in the face of American sanctions and threats. Crimea has a substantial pro Russian population.
Chinese haven't moved a inch in the last 70 years wrt taiwan. Taiwanese are very hostile to China.
Different ballgame