The 24-year-old stated in May that he wanted to leave Sochaux this summer.
“It is an open secret,” Lacombe told RMC. “(Lille president) Michel Seydoux is currently abroad.
“We hoped to be called this afternoon, but we expect it to be tomorrow. For Marvin, it will be Lille.
“Our goal was to keep our young players in the squad until they played 100 games for us. We are happy to see them go and play at clubs who are at another level.”