Is there an announced or rumored opening date/timeframe for Star Wars Land at DHS yet?
Certainly nothing "announced" (Pandora is rumored to open as soon as April and there have been no announcements). Most are "guessing" sometime in 2019. Some as early as late 2018, some as late as 2020... Toy Story land will likely have a 2018 opening.
Star Wars Land will be opening on Your Guess Is As Good As Mine in the year Disney Moves At A Snail's Pace
I'm thinking 2018 is too soon, so if they got it done to tie it in with the release of 2020's Episode IX, that would probably make sense.