We don't have plans to update Cloud9 sceneries with more than what might be eventually needed to ensure they'll still work with anything we'll release in the future or any OS updates, etc.
But, we now have the rights to create entirely new versions. Which doesn't automatically mean we'll do them: we just now have the option.
In this case, if we decide to do them ( at this moment, our hands are just full ) and if, at that time, we'll still consider worthwhile targeting FS9, then we might program the scenery taking into account from the start that it will need to support AES.
