If you believe the statements of high-ranking mainland officials, unless third parties try to intervene and seize Taiwan, or there is internal chaos in Taiwan, or Taiwan declares independence, the PRC will not start a war against the island.
若依照中共高層歷來宣示的對台政策，除非國際勢力介入，意圖奪取台灣；或者台灣內部發生動亂，和台灣宣佈獨立，否則中共不會發動對台戰爭。