This is old news so far I have seen that the hashpower coming from Inner Mongolia will move to another region within China where mining is legal. Inner Mongolia based from the news only accounts for 8% of the hashrate Bitcoin has and that is small compared to what Xinjiang and other regions are offering. I wouldn't worry too much about this decision by Inner Mongolia banning Bitcoin mining as it wouldn't spread to the other regions as Inner Mongolia have some kind of autonomy in their government.