The upcoming UNCLOS ruling, and 520 Ms. Cai's statement. If it is coupled, and the threat is unthinkable. I understand, China can always choose to ignore and even denounce. But, as I said in the short article, that is a one-step further towards Taiwan's independency.
Based on that, I believe "island building" is not going to help much. However, I agree that, in a longer term, "island building" eventually will affect all aspects of the South China Sea, including the conflicts.
If you are really a "TheJudge" , please help us understand the significance of the Philippine's documents to UNCLOS in a legal way, not as a prosecutor.