Hamid Karzai told a gathering of elders on Thursday that the agreement should be signed after next spring's elections.
Baluch activists making long trek to protest thousands allegedly abducted by Pakistani forces.
Will charge him for treason for declaring a state of emergency and suspending the constitution.
The former president is still barred from leaving the country pending the court cases against him.
Paves the way for an end to Pervez Musharraf's more than six months of house arrest.
Decision made at meeting attended by Karzai, the U.K.'s David Cameron and Pakistan's Nawaz Sharif.
U.S. drone strikes within Pakistan still cloud ties between the countries.
In rocky relationship between the nations, Nawaz Sharif's visit is seen as sign of progress.
Hit rock bottom two years ago, in part over raid that killed Osama bin Laden.
No one claimed responsibility for the attack, but suspicion likely will fall on the Pakistani Taliban.
