The big thing is for the PLAN to be able to conduct and win a true deep ocean 'Battle of the Pacific' on a similar level as the Allies did against the U-boats in the Atlantic in both world wars, but on an even greater strategic scale.
No, why would China do that? Sure once a lot of 095 come online and they become overwhelming in numbers relative to USN submarine fleet, they can break out into US side of the Pacific and terrorize shipping freely, but the main focus for China is defending itself firstly.
As long as China defends the 1st island chain, which mainly requires air assets, mobile naval strike groups and missiles, the coastline will be free to build hundreds of warships for the eventual east Pacific front of the war.
Current status of China's 1st line of defense: SCS/Hainan = fully ready. Korean peninsula = half ours, but the other half is deterred from fighting so effectively neutral. Taiwan/Easternmost China = many defenses deployed but complicated by KMT insurgency.
Holding that line is the absolute greatest key to crushing an American offensive or even a preemptive strike on US before their aggression further increases. So that's where assets should be invested in. UAVs, missiles, J-20s, surface ships with good ASW, new bombers etc.