Tanks are most probably going to be stationed on Java, under command of the Kostrad strategic reserve unit.
Logically any new tanks (or MBT if the plan goes ahead) should be stationed in Java, since the infrastructures to support them will be available best in that Island. However some noise in here alreeady specullating that new MBT will be stationed in Kalimantan/Borneo in the new Cavalry Batalions being build there. Personally I have my doubt that the newest Tanks will be stationed outside Java.
The Air transport elements by TNI-AU with C-130 as the biggest, means they can only afford to take max 15-18 tons Armoured. Thus only catagories like AMX-13 or Pindad's new 'canon' Armoured Cars can only be put by air. Whille most of TNI-AL trasnports except the 4 Makasar LPD's is also geared for Light Tanks and APC's for their transported inventories.
Thus by that logic, if new MBT being procured they will be stationed on Java or Sumatra at most, unless significant supporting infrastructures being build outside Java and Sumatra.
@Chino, the doctrines for TNI still is deffensive postures. TNI doctrines still dictate (at least semi-publicly) that due to their conditions, they will use the advantages of geographics of Indonesia for deffensive strategies in which basically try to wear down potential Invading forces through deffensive/guerilla tactics of hit and run.
What's quite sensitive though this doctrines dictates that they will hold ground in Java and Sumatra whille play insurgencies doctrines outside Java and Sumatra if facing supperior invading forces (Java and Sumatra in here means also some smaller island near to Java and Sumatra like Madura, Bali) This was known but seldom talked since it can create ressenment feeling from people outside Java and Sumatra.
I heard about this doctrines around late 80's when the mood that time was talking about northern invations scenarios. However this doctrines I heard still beingheld somewhat by National Defense think-tank in Lemhanas on basis that the infrastructures for long-term defense is available mostly in Java and Sumatra. Thus the thinking is that coordinating good defense only possible under current TNI situations for Java and Sumatra, whille outside Java and Sumatra the Armed Forces and local militia will conducting Insurgencies strategies.
Off Course, the basic Philosophy of TNI is still to defend every inch of Indonesian sovereign teritory
For addtional info:
From Tempo Interactive, quoting TNI-AL Marines sources and Mindef, the Marines set to have a full batalion (54) of BMP-3F from current already delivered 17. This will make the Marines operating 3 Light Tanks batalions with one operating BMP-3, the other PT-76 (upgraded), and the last one operating AMX-10P.
Seems they will operated and supported by elements of Armourd Personal Carriers of BTR-50, LAV-7, and BTR-80 in composites ways.