So far the offical word has mostly been "this summer". The Battle for Vedros is coming at the onset of summer according to the latest bit of information. This will expand the hobby to new audiences, and I for one am looking forward to it. Right now though, this will be a US only release to Toy and Hobby stores.
sources on Faeit 212
Ive been told this is from the "US toy sales commercial manager" for GW
via Sarah Smithurst Mbe on Facebook for the Battle for Vedros
https://www.facebook.com/battleforvedros/
The stores will have this in North America from the 6th June. Happy building, painting and playing.
The Battle for Vedros
https://www.games-workshop.com/en-AU/Vedros?_requestid=23966885