If I understand your request, then both of these things are coming, more or less.
On Entities, the Relationship views are being replaced with fully functional Tables I believe.
The [IN DEV] Migrate Entity View to Blocks effort will allow embedding multiple types of Views into an Entity, and these could have their own filters, etc., or âqueriesâ.
Yes, indeed, there is an item in progress that will deliver most, if not all, of this:
It will turn the collection into a ârelation viewâ with support for filtering/sorting/colouring, as well as hierarchical lists (showing levels below the first level of the relationship).
I wouldnât say that it would allow âarbitrary queriesâ but it will certainly allow a lot more functionality than is currently possible.
Yes, though to be clear, since @rawkode mentioned RoamResearch, Fibery doesnât do that sort of in-line arbitrary query and filtering thing. But if you can do what you want right now with any existing View (table, list, etc.) and the available Filtering, Sorting, etc., and you just want to be able to do that in an Entity, then yes youâll be able to embed that into an Entity or really any Rich Text.