This of course could be the real Summer of Flyers, but with the recent box games coming and going, there is some meat to this now. The latest rumors give us a mini game with two models similar to the Imperial Knight Renegade box game. With this we could expect, two flyers at a discounted price, and some new datasheets for 40k. Hopefully some Chaos conversion datasheet.
via Sad Panda on Dakka
It appears GW might also do something similar (2 old models, 1 mini-game + discount in a box) with flyers later this year.