Coal is already shrinking in the China (in absolute terms, not just as share of production) [1], and share of wind + solar is already larger than in the US [2], so I doubt China will ever reach US proportions in CO2 emissions per capita.

An additional data point to support that is that emissions intensity per GDP is clearly falling fast for China [3].

[1] https://ember-energy.org/data/electricity-data-explorer/?ent...

[2] https://ember-energy.org/data/electricity-data-explorer/?ent...

[3] Chart 75 from here: https://robbieandrew.github.io/GCB2025/