Db-mode (database mode)?

I’d like pages and blocks to be treated the same way. That way I don’t need to care if something is a page or a block ([[]] or (())). I can just connect stuff around.

As much as I value the md/org-mode file format, it seems limiting structurally.

I saw this card in the roadmap mentioning a database mode (Db-mode), which seems to address this. Though I’m not sure.

Anyone knows anything about this, and/or estimate on when this might be done?