Thursday March 26th, the Yeezy will be releasing in Europe on the main website at 10am CET time according to the latest Originals tweet. Flagship Originals stores such as Berlin and London are also expected to get them in.
Also Foot Locker stores in Europe will be selling them in store and online on this date and have a pre-registration on the 25th at select stores. The Foot Locker online launch is expected around 9am CET time. You can see the complete details of this launch here on the Foot Locker EU site.
Unfortunately the adidas Europe and Foot Locker stores do not ship to the US so this will be a European release only. So far it has not been announced if or when the next US release will happen, but make sure you are signed up for the Yeezy updates and keep an eye on the adidas Originals Twitter for new announcements on the Yeezys.