Micropayments with segwit are a no-go until Lightning Network is done and that is pure speculation at this point. Big Blockers fork off on Aug 1 and will likely take at least 50% hashpower with them. Right now, actual bitcoin users are overwhelmingly in favor of big blocks over segwit: https://vote.bitcoin.com/arguments/the-bitcoin-abc-client-and-big-block-fork-bitcoincash-is-a-better-roadmap-than-both-segwit-and-segwit2x