- this may disrupt Local business/shop relation to client. (see how weixin is used by small online shop)
- this may disrupt insurance (see how zhongan is selling micro-insurance through weixin)
- this may disrupt paypal, as soon as you can send 'money' over a messaging app.
- this may disrupt movie / theater ticket selling ... (there is tones of other example)
There is a lot of land to grab, the working use cases are already known (we get 5 year of china market data). I hope I had a couple of millions to invest in this market.