According to redplanet.gr, Nikos Zisis(1.95-PG/SG) and Olympiakos have already spoken and the greek combo guard had agreed to continue his career in Olympiakos. Obviously, for that to happen CSKA will have to release Zisis first. The article says that the contract of Zisis is quite high and given the fact that his playing time is not that great and also that CSKA want to reduce their budget, it is implied that he will be released soon.
Zisis is also part of the National Team of Greece but his career was disrupted by a devastating blow to the face by Anderson Varejao during a game between Greece and Brazil in 2006. He has started regaining his previous form and now he might be making a comeback to Greece. He averaged 5.3 points 1.3 rebounds and 1.7 assists in 21 games in the Euroleague but only with 16 minutes of playing time.