Yes, they will. There is no set time table that I am aware of though. Check your store every other day or so if it's close by. You will probably hear about further markdowns here as well.
If a set is already at a decent price and you are worried about missing out then don't gamble on it and buy them now. With the current $10 off $50 coupons I have cleaned out all of my local stores of Poe's X-Wing and City Bulldozers. Both come out to 43% off after coupon which is good enough for me. I have been leaving all of the Naboo Fighters, Friends, Elves, Ninjago, Minecraft, Elsa Castles, Deep Sea Helicopters, and First Order Snowspeeders. If any of those make it to another markdown I'll consider them, but only if I can stack with a coupon or Senior Citizen Day discount.