Shoaib Akhtar and Mohammad Asif could play in the World Cup while waiting for the Court of Arbitration for Sport's doping decision.
Asif and Shoaib are set to resume their careers
The Cas, based in Switzerland, said it normally delivers its decisions within four months of receiving the appeal.
The players were originally banned by Pakistan Cricket Board for testing positive for nandrolone.
But the bans were overturned on appeal because the players had never knowingly taken the banned substance.
The World Anti-Doping Agency was incensed at the decision and filed an appeal to the Cas in December.
In a statement, the Cas said: "As a general rule, the Cas delivers its decisions within four months from the filing of the appeal."
Asif, 24, is with Pakistan currently touring South Africa while Akhtar was not selected for the tour.
Wada said it cannot stop the players from featuring in the international events, as playing rights are with the International Cricket Council.
The PCB had played down Wada's appeal, saying any reservations by the Wada or the ICC would not affect the players