I should add this to my to-do list. Modding will be supported and the forums exist (which I know for certain as I created them, in case anyone needs confirmation) but are just waiting to be green-lighted. Which isn't my decision and is on hold as long as the EA feedback is prioritised. But just throwing that out there so it's known to be a thing.
But in the meantime I should probably collate some information about the how, why, why not and so on. People want to know how to install stuff and should know the consequences of doing so.
An official modding forum would for sure breathe some life into the EA I think. Just to get an idea of what kind of assets and art stuff people might be able to create for it eventually. Might distill around what people still want vs what we think might coming down the pike? Looking at Nexus is actually kind of encouraging for me, and might be to others too for positive feedback loops and all. I don't tend to download mods for games until someone manages to aggregate stuff into larger bundles, and doing while the game is still being built feels a bit odd, but would be cool to see what people get up to if there was a forum. I felt like BG helped to build nascent design and art making communities back in the day, just with Portraits and Voice sets and Weidu, so it would be cool to see Larian do something in a similar spirit