The announcement comes barely a month after the buses resumed operations after an NTSA suspension.
Shatta Bway is a prominent radio and TV sports journalist.
The agency has urged Kenyans to prepare the necessary documentation for a seamless process.
Sonko had previously expressed readiness to cover the cost of the repatriation of the three.
The governor fired four other county officials a month after appointing them.
This follows continued calls for his sacking over the increasing cases of banditry in the country.
The filmmakers also revealed the questions they were asked.
The motive behind Were's killing remains unclear as police are still investigating the incident.
The announcement comes barely a week after schools reopened.
A group of unknown goons raided and destroyed property at a deserted General Service Unit (GSU) camp in Angata Barrikoi, Narok County, after learning that offic