Retirement: they are already being "semi retired" with lower and lower hours each year to keep costs down. DC10's domestic routes will be replaced by extra 734s coming in (18 as part of expansion) and spare 742s or A333. On the international front, they will be completely phased out when Garuda's 772s come in. 772s first delivery slot is 2006. So I expect them to go by 2009.
Routes: Jakarta-Denpasar, Jakarta-Makassar-Manado, Jakarta-Balikpapan, Jakarta-Guangzhou (alongside A333), Denpasar-Perth(alongside A333), Jakarta-Seoul(ICN) (alongside A333), Jakarta-Singapore-Hong Kong (alongside A333 and 742).
Hope this helps...
When losing situational awareness, pray Cumulus Granitus isn't nearby !