Looks like the S4 premiere could actually fall after mid year... Grrr. I thought this might be trolling by SyFy, but Deadline.com has the first part of the quote as the same.
“We’re hoping [to premiere the] new season before end of the year,” said Vernon Sanders, co-head of Amazon Television. “We can’t wait for fans to see what their love has helped us build. We’re aiming for before 2019 is over.”