What if the Yuan Emperor thwarts the rebellions that caused the Yuan to lose power in China and started the Ming Dynasty, I am asking this because my TL has a surviving Yuan China.
Surviving till the present-day? Probably impossible. It might be easier if you eliminate the internal divisions among the Yuan officials. For example, if Toghto isn't recalled, he might have more success against the rebels. If Zhu Yuanzhang dies earlier, the remaining rebel leaders might not be as capable. Chen Youliang might still topple the Yuan by himself, but I don't see Zhang Shicheng doing so.
You can butterfly away the natural disasters that caused many problems, but you'd still need to improve the Yuan Dynasty itself,
I want it to survive till 16th century.
Snip.
It won't be too different of the Qing on some aspects - they are of manchus origin and so not Han... but they may be weaker too, and perhaps wiser not too impose a 'mongolification' of customs like the hairs for this.
Spot on.
Can´t do it without making them more chinese. Which is the end result anyway if they stay longer in power. Which comes first, the chicken or the egg?
Was there any emperor, plausible emperor of that dynasty who would´ve been reasonable enough to start the process of sinication?