I think the ability to pull from wikidata, including the statements on each page, would be really useful. Selfishly it would be great for my studies but I could see it being really useful for others too.
Yes ! This would be incredible !
With a functionality like wikibase-cli where you could interact with the hub, to open/embed wikipedia articles, commons pictures, etc. .
And for the wikidata contributors out there, it could be used to contribute missing information by comparing logseq DB and wikidata.