My predictions:
-40th anniversary Blu-ray/DVD box set from Fox/Disney
-Announcement that the Fox logo and fanfare will be present for I, II, III, V, and VI come 2020.
It would certainly make sense. Release it on regular blu now and then wait until 2020 to put it out on 4k. Would give people a reason to buy it on the new format (the SE in 4k won’t be enough for many fans).