The league is actually now allowing teams to wear two alternates instead of one, and can wear them for a total of three games instead of two. However, Garfinkle said before that the white throwbacks weren't ready for 2018. My guess is that they go with the white ones early next year in a divisional home game, and wear the aqua ones for two late season ones.
I like the Dan Marino 1980s aquas and the Larry Csonka 1970s whites the best of all the uni combinations from our history. Maybe next year I’ll get the 2 classic looks I like the best.