Partnership with IMSA extended for 2018 and next year's calendar
May 1-3 - Mazda Raceway Laguna Seca
June 26-28 - Watkins Glen International
August 21-23 – Virginia International Raceway
September 17-19 - Circuit of the Americas
October 1-3 – Road Atlanta
But what's really interesting for next year that the new trofeo version Huracán (which looks sexy as hell) and old Gallardo run side by side next year, just as Ferrari Challenge did with 458/430 and older 430/360 etc models previously. So you have some machinery variety there in non-BoP environment.
Moreover, I only just discovered that Lamborghini actually streams these races live on their website
http://squadracorse.lamborghini.com/en/live-usa
Came as bit of a surprise as they don't really give these races any coverage anywhere, and if they do it's some random races of the European series put on youtube months later... so that could be nice.
Of course, the grids in Europe are more impressive