Butt, 32, was the mastermind of the spot-fixing scandal that took place during Pakistan's tour to England in 2010 and along with teammates - Mohammad Asif and Mohammad Aamir - were banned for five-years and served jail time.
Their bans expired in September 2015 and while Butt has performed well in domestic cricket since then, Aamir has made his way back into the national team last January.
The PCB has remained reluctant to give formal clearance for Butt to play for Pakistan again, always insisting it was upto the national selectors to decide his case.
He said Butt was likely to be called up for the national training camp that will be set up prior to the announcement of the squad.