Google has already opened beta testing of Android 11 a couple of weeks ago, and now a leaked copy of the Device Configuration Guide in the latest beta suggests that all future devices to run Android 11 must have at least 2GB RAM. Smartphones will less than 2GB RAM, otherwise, must be launched as Android Go devices.
While flagship devices today come with an ever-increasing amount of RAM, smartphones in the lower end of the price spectrum aren't as lucky. For instance, take the recently launched OnePlus Nord, which, despite being a mid-range offering, comes with up to 12GB of RAM.
In addition to this, phones with 512MB RAM or less will no longer be qualified for preloading GMS, which means they will no longer be supported. These changes are expected to come into effect from Q4 2020 when the Android 11 update starts rolling out to the public. Smartphones launched prior to this, however, will be exempted from the said requirement.