That's difficult to assess. China doesn't publish its long-term strategies, and everything China does follows a long-term goal and strategy, in my opinion. That said raises the question: Would any future American president risk a WW III for Taiwan? Probably not, so why hurry?
There are three factors that have to be considered in my mind:
a) Trump is unpredictable, and he doesn't care about consequences. Nor can you rely on what he says in the slightest.
b) The world, including China, is dependent on Taiwan's chip industry. Securing its supply must be one of the first military goals of a possible invasion. I think they don't have a working plan yet.
c) China seems to sneak in rather than to invade: one country - two systems for HK turned into one country - one system within two decades, rather than an immediate change. Then there is China's new Silk Road. I mean, the most western harbor of China lies in Germany! China creates serious financial dependencies, particularly in Africa, apart from buying land for food production.
The only reason for China to hurry is Xi's own narcissism going down in history and uniting what they consider to be China. I don't see any other timely limitation. China thinks in decades, not election periods. Xi is almost 73, and I think he still has time.
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