Supporting more than one partition for updating, like in Android system updates

Hi,
Is there way Mender to support more than one partition for updating? Currently there is only RootfsPart (A and). I checked in the source code https://github.com/mendersoftware/mender/blob/master/config.go and found, that there is only RootfsPartA and RootfsPartB.

You can extend the client to update other partitions using Update Modules