This area needs some serious attention and I really hope Asobo will work their magic to bring it to a better quality standard. Especially the southeastern portion, ie: Malaysia, Vietnam, Thailand, Indonesia, Taiwan, Philippines, Hong Kong, etc.
Hardly any developers are even making airports for this area. We need RKSI, RJPC, VVTS, VVDN, WKKK, VTBS, VTSP, VVNB, RCTP just to name a few. And most of those are popular and large international airports too. Pac Sim, use to make a lot of nice airports for this region in P3D/FSX. If any developers are seeing this, please take note. There's a ton of potential in this region that hasn't been touched yet.