As I promised:
Kursk, The Battle of Prokhorovka by Chris Lawrence
1,600 pages long. It was delayed again, and is coming out this fall. Pricing will be over $100 USD from what I've last heard. The book is more in-depth, has greater coverage of infantry combat (rather than the tank-centric prior works) and should supercede all prior accounts in english. A lot of Russian/German archival work went into this and it was a team effort.
The subtitle is actually wrong; the largest tank battle in History was at Brody-Dubno 1941 with its 3,800 tanks.