I don’t think it’s going to improve within the lifetime of anyone alive today. Officially the two systems with Hong Kong self-governance could end in 2047, but Chinese government officials have repeatedly stated that they are not planning to pull the plug and have hinted that it’s going to be extended indefinitely.
Contrary to the fantasies of liberals and about teachers getting arrested for opposing the sissypee, the Chinese government has actually been extremely half-hearted in terms of rooting out the rot from the education system. In fact last time they tried to flex their weight when a HK professor tried to do Japan war crimes apologia they ended up backing down. And up until very recently the vast majority of textbooks were produced by a teachers’ organization that explicitly supported the CIA-backed riots in 2019 and had a stated goal of fostering an independent Hong Kong identity in students. Which is how you get textbooks titled “Hong Kong in the Pre-Qin Period” trying to do revisionist history pretending that Hong Kong identity wasn’t invented by the British after they stole the land less than 200 years ago. (Hong Kong in the Pre-Qin Period was a desolate wasteland with population zero).
The problem is Hong Kongers don’t see themselves as Chinese, despite most of them being descended from mainland immigrants who moved there less than 100 years ago. It’s also a perfect example of what happens when you let Freedom^TM^ and Democracy^TM^ reign and allow the kids to have their brains destroyed by western intelligence-controlled social media. So now you have dipshit 20 year olds running around with British colonial flags demanding a return to colonial “democracy” where only white British men could hold executive office and where protestors were murdered with impunity.
The white worship has gotten so bad that there are numerous cases of materially well-off individuals abandoning everything they had in Hong Kong to move to the UK to work hard labor jobs for starvation wages while British politicians debate whether to put them in concentration camps or just deport them.
The Chinese government doesn’t want a repeat of 2019 and they are actually going in the direction of creating more Hong Kong-like places, such as when they launched the Hainan Free Trade Zone. Government officials aren’t the rabid Chinese nationalist caricatures in liberals’ imaginations itching to take back Taiwan and fully integrate Hong Kong and Macau. In fact a lot of them still hold onto naive fantasies of holding hands and singing kumbaya in the Rules Based International Order^TM^ and you see this in action when they put out rhetoric about how China is the true guardian of free trade or whatever.
TLDR: Even though Hong Kong is officially part of China again, the government can’t really be assed to do the work of cultural decolonization, which no amount of putting flags in schools is going to accomplish.


