I am planning to request a grant to develop an application that allows to wrap multiple AENS names into an NFT (AEX-141). in order for a contract to easily transfer ownership of user-owned AENS names to the NFT contract such signature would help a lot.

it would be awesome if this could be handled by just requiring one specific delegate signature of the user-account instead of having to provide dedicated delegate signatures for each name individually.

I have already shortly discussed this topic with @hanssv and it seems like it shouldn't be a big deal to include this in the upcoming Ceres hardfork.