Had 5 or 6 friends flying there on the 737, no expat contract was renewed after the end of the 1st year. I don't think they will start again hiring expats but, who knows!
They weren't unhappy there although the culture and city (Jakarta) were a bit difficult to get used.
Male FOs were specially happy
Females well treated too.
Good luck guys
PS: don't know the CRJ but 737 guys were flying like crazy (100-105 hours a month). No commuting, they were coming back to Europe 2 or 3 times a year using some leave days. They received tickets from Jakarta to Amsterdam with Garuda (not sure if in business or tourist class) then they bought their one ticket connections to wherever in Europe they were flying to.