Additionally, you already more or less had an answer to this question through a statement out of the FAQ:
Will there be mod support?
Yes, we’d like to support modding eventually. However, our resources are limited and our priority is in creating the best possible core game first. It could be a while until modding becomes possible, if at all, and we can’t make any promises at this time.
So the most important things are answered:
Is it gonna happen? Maybe.
When? They aren’t sure.
