Will China Take Over the World?

As far as I can tell, the Chinese are never assimilated by other cultures, but the other way around.

Consider: 

The Mongols killed as many Chinese as possible, and took over their empire.  About 50 years later, the conquerors are speaking Chinese, writing Chinese, and can barely ride a horse anymore.
 
The Manchu, a completely distinct people with unrelated languages, dress, religion come and conquered China again.  Today, even the Chinese can't tell between Manchurians and Han Chinese. 

Every civilization around China, even without direct contact has been heavily influenced.

Now, as more Chinese head overseas into foreign communities, forming tight, isolate packs amongst themselves, could it be possible that they will exert a large cultural influence over us?  They are within us, spreading their beliefs and way of thought, I'd even bet a good part of 4chan is Chinese-American.

Will one day, the world around us, the Internet, the signs on the streets be half in Chinese?  Will we adopt Chinese customs and ways?  Or will we RESIST?

Discuss.

One thing to perhaps consider...  the Chinese refer to China sometimes as the "middle kingdom", meaning like, "centre of the world" (sound familiar, you damn yanks?).  They think China is really the only place that matters... you can go through the history and look at all the examples of China assimilating invaders, but can you find one example of China annexing foreign soil?  They tried once with Japan I know, and the Divine Winds saw to that...  but even why they sent out the Treasure Fleet, it was always to look for trade and to explore, never to conquer.

China's been really strong before, and centuries at a time before falling back to infighting muck...  but ever once, have they tried to take over another country?  Ever?  Once?

Hahaha, oh wait yeah Tibet, okay, but they considered that Chinese soil, so...  seizing land that was totally not Chinese soil at all?  Ever?