The WEC had released its 2015 calendar of events and we found it over on Sportscar365. Interestingly, it now includes a race at the Nurburgring, which is good considering Audi and Porsche are German and even Toyota's WEC effort is based in Germany.
2015 FIA World Endurance Championship Schedule
March 27-28 — Prologue Test at Paul Ricard
April 12 — Silverstone
May 2 — Spa-Francorchamps
May 31 — Le Mans Test Day
June 13-14 — 24 Hours of Le Mans
August 30 — Nürburgring
September 19 — Circuit of The Americas
October 11 — Fuji Speedway
November 1 — Shanghai
November 21 — Bahrain
*Schedule subject to approval by FIA World Council