The Enstone squad have unveiled former world champion Kimi Raikkonen and Romain Grosjean as their 2012 line-up after it was confirmed that Kubica will miss the start of the season as he is still recovering from the injuries he suffered during a rallying accident.
There are serious doubts, though, whether the 27-year-old will drive for Lotus-Renault again as rumours in the paddock suggest he has signed a contract with Ferrari for the 2013 season.
Team principal Boullier had already admitted that they are not going to help him regain form if he is not committed to the team, saying "I will not bring a car for him and make a nice test for him if in 2013 he has signed already an option elsewhere".
Boullier has now added insult to injury by revealing the relationship with Kubica is at "point zero".
"I don't know if there will be a future between Lotus Renault and Robert," Boullier told BBC Sport.
He added "We have been waiting for Robert to understand his plans. We would like to sit down with him and his manager to see what can be done to get him back in F1.
"If we can help him get in back in F1 we will, but we have signed our drivers for next year and we want to stick with them."