The picture above is an old Jes Goodwin concept for what appears to be a necron flyer. Keep reading and you can see someones conversion built model of this. (I don't know who built it, just that it was someone in France.)
Remember that this is just rumor and to add salt. Please note that the pics are not attached to the rumor. They are old, but are floating around now as something a Necron flyer could look like.
Scarey Nerd
OOO OOO OOO Just remembered something!
If this Summer of Fliers thing goes ahead, Fall of Damnos gave a hint as to what the Necron flier would be!
"The Undying tells Ankh to bring him his Sky Chariot, before Ankh tells him that it is long since turned to dust. "
ghost21's response
id stay excited if i were you