The latest big move in that direction was the new Foreign Investment Law https://en.wikipedia.org/wiki/Foreign_Investment_Law_of_the_... that went into effect this year, which introduced a bunch of big changes, such as switching from the previous system of "everything is off-limits to foreign investment unless explicitly allowed" to "everything is open to foreign investment unless explicitly forbidden". That list of restrictions http://images.mofcom.gov.cn/wzs/202006/20200624143734575.pdf already includes provisions for further opening in the future, such as removing the last restrictions on manufacturing passenger cars by 2022. (Special-purpose vehicles, electric cars and commercial vehicles are already exempt.)
If that doesn't demonstrate "intention of opening up", I don't know what would.
The only thing about China that hasn't changed seems to be Western commentators' knowledge of it.