It's not about the place. It's about you.
There's many things you can do in Asia. Way too many things. You have to decide what you want.
Eg. if you want to shoot predominantly landscapes, then there's tons of sights, from volcanos and lakes in Indonesia to jungles in Borneo.
If you like temples, well-- there's a hell of a lot too.
If you think that you should go shoot everything, what you'll end up with is many pictures of everything, but probably few good ones. On the other hand, if you know what you want, and tailor your equipment accordingly, you will get fewer but much higher quality output.