The 38-year-old veteran is not expected to take part in any military action.
Off-spin legend played the final Test of his career on July 22, 2010.
Malinga will leave as Sri Lanka´s third highest wicket-taker in ODI cricket with 335 wickets in 219 innings so far.
The delegation is expected to monitor security plans ahead of the two teams' planned Test series in October.
There are legit reasons why the PCB should not wield the axe on the incumbent skipper just yet.
Prime Minister Imran Khan addresses the Pakistani American community at Capital One Arena
The captain stresses on the mental and physical aspect of international cricket