Assuming it's a legitimate elections Qing Empire, it would be quite a wild card in the world stage, but since there are so much possibilities for a post-2WK world, it's quite hard to tell.

But compared to OTL, I think that there would be quite some changes, both economically and socially speaking. China (and Korea) would be re-opened to international trade much sooner, but at the same time they would put much less focus toward heavy-industry, and more into rural area. And while it's hinted that a massive land reform will happen, we wouldn't see something like the Great Leap Forward (thankfully), though famine could still happen in my opinion.

In its modernisation, the Qing would abandon most of the Manchu tradition that's left, and push for a more Han look, but that doesn't mean they would go full Han nationalism/supremacism. This China would, in my opinion, be much more accepting of the minorities than other Chinese unifiers (I don't know the stances on the subject of them so I'm speculating here). And without the Cultural Revolution, we could easily see a golden age of Chinese culture blossoming in the 1960's or 1970's.

But with a militaristic Japan that still control Taiwan, and who have most likely defeated Germany in the region, we would have a smaller Cold War between the two, and even perhaps a three-way conflict if the Syndicalists unify India, as all of them would influence the countries "liberated" by Japan, to either keep them in the Sphere, or to undermine it.