In the recent Bangladesh Premier League, he finished top wicket taker for the Chittagong Vikings.
Amir, who has taken 51 wickets in 14 tests at 29.09 and toured New Zealand in 2009, won't necessarily get an easy passage back into the national team.
Reservations have been expressed by some players about sharing a dressing room again with Amir.
Most vocal has been the top class opener Mohammad Hafeez, who pulled out of playing for Chittagong when he discovered he'd be playing alongside Amir.
"It is not about individuals or any personality clash," Hafeeez, 35, and who averages 40.85 with nine centuries, has said.
''It is about the image of Pakistan cricket. I cannot play with any player who has tarnished and brought a bad name to the country."
Hafeez, who refused to face Amir in the nets at a practice session in Lahore recently because of his tainted past, is said to merely be one of several leading players opposed to Amir's return, and that of either Butt or Asif.
However the Pakistan Cricket Board have said they are open to considering him for the tour and working to settle any misgivings among the other players.
