China can work, but need more territories. Anyway, Italy is going to be a mayor power and Italy has the same chance of doing something than China.
Someone said China should be as in Pacific, integrated in USA’s turn. Maybe, but let them buy more than inf. And if China is in USA’s turn, maybe Italy can play in Germany’s turn
And I like the idea of different pieces for Italy and China. They could even make markers for minors, only for flavour (example, Australian IC built forces having an Australian marker, Canadian armor have his marker, etc.) Minor markers could even mix with some minor power NAs or such.
Just a couple of ideas :-)