Describe what you would like us to do:

include the il-central-1 region for cloud and coreos image deployments in Amazon EC2.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html

To Enable a region

1. Sign in to the AWS Management Console.
2. In the upper right corner of the console, choose your account name or number and then choose My Account.
3. In the AWS Regions section, next to the name of the Region that you want to enable, choose Enable.
4. In the dialog box, review the informational text and choose Enable Region.
5. Wait until the Region is ready to use.

When do you need this to be done by? (YYYY/MM/DD)

When it is possible preferrably before our next FCOS release.