I'd likely wouldn't put my hopes up, sorry. Most we'll probably get is single moderators.

With how user authentication on Nostr works it wouldn't be feasible for a Foundation account since they would need to share keys between other developers who comment on socials, and of course that would be a terrible idea. Yes we could use the NIP-05 to verify, but that still wouldn't move all interactions to new keys.

There also isn't much of a way to keep the Nostr nsec keys cold while keeping usability to allow posting regularly at the moment. I've seen nostr signing devices but I'd like to see support and security of them expand first - I would adopt one individually if that was the case instead of using a dedicated GrapheneOS profile.

Security is a massive requirement for anything the Foundation does, which is also why Lightning donations haven't been fully adopted yet. I personally choose to offramp almost all the Lightning payments myself to the foundation wallet, while keeping a small amount.