JLOC Lamborghini at Le Mans:
JLOC
Their site doesn't clarify who's in the car. There's a page with the team details and the section for drivers for the Le Mans race says TBA. However, the full season for Super GT only includes Yamanishi, and Yamanishi's personal website has a banner saying Super GT and Le Mans:
http://www.koji-yamanishi.com/ But there is a section on the home page which seems to mention next events and it only mentions a competition after Le Mans!
I see that ACO, DSC and EI all say Yamagishi.