BKB1991
Panel of Selectors
I would assume they remain kolpaks. Same way the IPL teams are supposed to play 4 overseas (I guess Mumbai are the exception) and the Big Bash teams can play their two overseas players (if they have them).
I would expect them to be considered internationals tbh, thats like the rule in English county and shouldnt be in the CLT20, but then BCCI have been twisting it for IPL so I guess its fair.
If Mumbai wins this tournament, that should be it.