Imagine plugins with coda/notion. Then you can have documentation that lives with the document. V0 could just be html embed. V1 could have link data from tables to comments. V2 could create tables inside coda from problems panel, properties, etc.

Another dope plugin would be E&M field simulators for the PCB. This would be similar to how OnShape provides FEA analysis/advanced shaping tools (they don't).