A quick roundup of some things that have been said about upcoming flyer releases:

Quote Originally Posted by Stickmonkey View Post
To feed some actual rumors in here.

Wave 1 in june is as bow has revealed. But i am expecting the de bomber before end of summer along with a tau and chaos sm flyer. The csm flyer is likely w the codex so the other two may have "something" with them.

The tau flyer as ive heard from 3 sources is named after a snake, not a fish. Has a networked marker light like item/weapon that can stack. 4 missiles. Options for rail guns or some gattling cannons. No transport.

Orks still have another flyer that is ready for release. And its in the codex.

Eldar get nothing until their codex. As others have stated.

Tyranids harpy has been done fore some time, but its looking like itll be held onto for a while longer. Rumor is another nid wave release with the spore later...
Quote Originally Posted by Stickmonkey View Post
Hears some new info...

I expect releases for tau, eldar, dark eldar before end of August.

Based on what I've heard/seen

Eldar are getting a dual kit. A fighter, bomber/heavy attack, and transport were in the works. The heavy attack craft and transport most share a design aesthetic. So this is what I am expecting.

Tau are getting a fighter/gunship in a single kit. Roughly the size of a Stormtalon. Has new missile options. Not the existing tau seekers.
Rule wise ( remember Im not good at getting accurate rule info, so add your own salt and keep it off the forum please) its supposed to take advantage of markerlights in a different way...allowing for indirect fire on any target in range with a markerlights on it from any other tau unit. This is with all it's weaponry, not just missiles. Or so the rumor goes.
Tau have a transport flyer also which should be out with the codex, not before.

Dark eldar should finally see their bomber.

And the most interesting bit, which some may have already had a hint of, there is a third Necron flyer, it uses one of the sprues from the new scythe kit...but don't hold your breath for it...I don't expect it until 2013-...ish....


Cheers
And this from over at Faeit 212

Quote Originally Posted by A Must remain Anonymous Source
Flyer waves incoming: there are two full waves pending release: a Tyranid wave (Harpy, Harrier, Tyranid Warriors, Mycetic Spore and reinvented rules for Pyrovore as anti-air unit) and a Dark Eldar wave (Void Raven, Grotesque unit with expanded options, Sliscus, Sathonyx and Vect (on foot)). There was a third wave planned for the guard (Thunderbolt, Hydra, armoured veterans, Storm Troopers) but it was postponed into oblivion because the Thunderbolt didn’t get approved.

Four more fliers in the pipeline: renamed Eldar Nightwing (finished), Tau Copperhead (finished), and a medium sized Space Marine and a large Ork flyer.

[snip]

A daemon flyer (or swooping) wave is even more far off. All waves may come without a codex. I don’t know when or in which order these are released.