Right now I'm not sure, not really because of the skill check system itself but more where I think the game might be going. I've got ideas for other parts of this that wouldn't be pure narrative that Narrat wouldn't be able to handle, along with a bunch of other ideas that are out of the scope of what I can do (music, primarily) and would need to see if others would be interested in working on it. That's along with those ideas needing a bunch of testing and beta players to see if they're actually good or not.
Basically, this project would be beyond the resources I have on my own to bring it to a level I'm happy with. Or more I do have, but I'd be spending the next few years on it alone when I want to be messing around with other stuff right now.
All this to say: dunno.