We have been talking for a long time and frequently about the integration of Forgeworld models into Warhammer 40k. There have been mixed messages from Games Workshop on the issue, especially in events at Warhammer World. While Forgeworld's production and products are merging into Games Workshop more, Forgeworld will become more and more accepted into the mainstream games.
This is the beginning.We have been told this was the case by insiders, that Games Workshop considers Forgeworld legal, and even Aaron Dembski-Bowden commented that this is the case (very good author from the black library who gets to sit in on meetings).
Please consider this a rumor, as I have not yet seen the announcement.
Warhammer World is running an event that was just announced, and yes....... Forgeworld and escalation is all being allowed.
via an anonymous source on Faeit 212
The events team at warhammer world announced a few days ago a new event called the triathlon. Its a 3 day event combining Kill Team, Battle Brothers and Throne of Skulls. But the big news is that they have announced Forgeworld models, including those from the Escalation FAQ, will be allowed in this tournament.