Only Koreans are in the business of using low cost labor like in Bangladesh to cater to Western markets for low and medium value addition export items (shoes and apparel and at some point, appliances) and they are experts at it. Koreans make automobiles overseas as well, but that is in markets where local demand exists (like in the neighboring country).
The Japanese and the Germans are in the business of making extreme high value addition products overseas, which are usually technical products that are too expensive to make at home, such as instrumentation, specialized gadgets and in the case of the Japanese, sophisticated personal electronic and optical products like cameras and tablets. I have seen only a few Japanese factories in Bangladesh making fiberglass items (golf-clubs, fishing rods) and optical products (glass lenses, sensors) whereas they have loads of them in Thailand (most cheap Canon/Nikon SLRs and plastic lenses are made there).
Since Indonesians themselves need FDI at home, I don't know what business advantage they'd gain by investing here, although I imagine in some areas like heavy engg., shipbuilding and defense it would make sense. Oh and railway coaches too.
Plus they could supply clinker and coal to local cement and power generation facilities.
But these products would be for local consumption. We don't really need them to invest in SEZ's for those.
I don't believe Indonesian business people could actually make money by using local cheap labor to export anything when they can use local labor at home unless they use some of our quota advantages such as that of Pharma.