According to a poster on FSU who spoke with Klimkin on a show in Germany this past weekend, he will undergo surgery after the coming shows in St. Petersburg (I think the problem is his ankle, don't quote me on that). That would keep him out of competition for several months and therefore making him miss the whole season.
He is still listed for Cup of Russia, though, but I don't see why Ilia would tell all this to someone if those werent his plans.