Latest rumours on warseer seems to be SW, DE and 5.ed in 08, and in that order.

From warseer - dosadi: "A 5th edition SM codex will be hot on the heels of the new box set. This was also confirmed last night by a staffer I trust. Dark Eldar are in there somewhere mid '08. Then I imagine we will see SW in the 08/09 winter slot that the orks are in this year. So a Spearhead in mid Dec and Jan '09 for everything else. However, this I'm not so sure of but it stands to reason."

And then T-tauri:

"I've heard from three sources now March 08 for the Wolves in the same slot as the Dark Angels had this year. Whether Dosadi's sources are more up to date than mine I don't know. I hope mine are right.

5th edition will be in the slot that Apoc had this year to premiere at UK Games Day, I believe, so look for an October release on that."

http://warseer.com/forums/40k-news-rumour-discussion/114074-space-wolves-4.html

That's interesting, and fits with what I've heard. The rumors for 5th edition next year have heated up quickly, that's for sure.

Tekore

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I just started collecting DE.

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'Least I can look forward to some new models then!

Still, it'd be nice to see Orks and DE released in rapid succession. The models were kinda showing their age, though if GW is doing a xenos/imperium/xenos/imperium release - as they seem to have so far, I'd guess Wolves would surely be next for release?

Still, I like the sound of the potential releases overall, but until I see "DE will come out at x time" by GW, I'll be a little skeptical, as Daemons seem to be a hot topic for next year too.