Update: Nexus Games have posted an announcement regarding their distribution of the WIngs of War range.
From their announcement:
After over half a decade of publishing Wings of War, the wonderful card and miniatures game of nail-biting WWI and WWII aerial combat, we at Fantasy Flight Games must now announce that we will no longer be offering future releases or new printings for this line.
While our current Wings of War stock will remain available until it is gone, all future products in this line will be handled directly by NG International/Nexus Games. We would like to thank NG/Nexus for the success of Wings of War of the past six years, and we wish them all the best in their future endeavors.
Distributors seeking more information on continuing to carry Wings of War should contact NG International through email@example.com.