As usual, I will caution about setting one's expectations for any "big" update.
Updates come when they are ready. Sometimes you bundle a bunch of user-facing things into one update because five different teams happened to finish their thing around the same time. Other times, only one team is done, so you put that out there rather than waiting for others. Still other times, all you get are some background fixes that will make the next update possible.
And of course, one person's "important" feature is the next person's "meh."
I do think we'll see a major change with the Gravity UX release. Whether that comes to Air right away or several months after Gravity's launch is anyone's guess.
Keep in mind, too, that Lucid just experienced a major shakeup with Mike Bell leaving. So who knows if whatever the plan was will proceed without change, or if they'll scrap a few things and change gears?
Not trying to be a downer. Just don't be too shocked if the next update ends up being some nice smaller improvements, is all I'm saying. Getting one's hopes up, reading the tea leaves, etc. usually leads to disappointment in my experience.