Realtime hashrate metrics from BTC.com show that Antpool's hashrate on the main Bitcoin chain has dropped close to 15% over the past 24h! Where is all this mining power now?
The biggest dip (-34.56%) is obviously on the viaBTC pool, which is the primary backer of the BCH fork. BW's hashrate has also dropped more than 6%.
The only major pools that have seen an increase in mining power over the past 24h would be BTCC and Bixin.