I don't think the NHL would allow that unless something has changed recently? The NHL has suspended relations with KHL but say they will continue to honor contracts as seen in article I quote below.
"The relationship between the NHL and the Kontinental Hockey League (KHL) was reportedly terminated by the NHL on Monday amid the Russian invasion of Ukraine.
The move comes just over a week after the NHL
condemned Russia's invasion in a statement, suspending its relationships with Russian business partners and pausing NHL digital and social media site
“We will have only limited contractual information regarding players who are currently or last played in the KHL,” NHL deputy commissioner Bill Daly said on Monday,
per the Associated Press.
The main fallout from the termination of the relationship will be an indefinite halt to communication between the two leagues. They will not exchange data on players under contract, update player contract databases, exchange free agent lists, or settle contract disputes. The NHL will, however, be honoring existing player contracts.
Several former NHL players
already cancelled their KHL contracts of their own volition, per Sportsnet's Elliotte Friedman."