Well i hope antpool stick to its guns and doesn't run segwit code until core makes good on their promise. Core knows 2MB would gain >75% hashing power pretty fast, but they choose to undermine the will of the majority... satoshi would be proud....
The promise was made by a couple of devs at the conference. They weren't there with official Core decision making powers. Even if they do code the hard fork 2mb blocksize increase, there's no guarantee it will obtain "consensus" to be included in Core. Unlikely to reach consensus, making it a rather hollow promise.