After playing the past two seasons for Avangard Omsk, Sobotka has been in talks for the past five months with no resolution. The sides will try to spend some time during the World Cup of Hockey to come to an agreement.
Sobotka, 28, has one year remaining on this KHL contract and said this process has been a difficult one.
"We're still talking and we'll see what's going to happen during the World Cup," said Sobotka, who has 35 goals and 88 assists in 381 career NHL games. "After that, I think we're going to be smarter. It's been going on for five months and I've had enough of it. It's my agent's job to to keep talking and we'll see."
Meanwhile, he said he has no regrets leaving the Blues after the 2013-14 season to play in the KHL.
"Oh, no. I never regretted I left because of my personal issues," Sobotka said. "I left to play different hockey and now we'll see what's going to happen."