If someone is really keen and wants to run another server in the same location (either Tokyo or Singapore) from Amazon EC2, you can find more details
here.
Running a single server costs somewhere between $30-$35 a month if you use a spot instance, however the main risk with spot instances is that if too many other people want servers up and running at the same time - your server will be shut down unless you're willing to pay extra to keep it up and running.
If you give me access to the AWS control panel for your account, I could get the server up and running in a similar way to how Atlas and Prometheus were running - mostly automated.
At this point it's over to you guys to decide what you want to do for players in your region.