From the latest Development Diary just released today:
"
New Skills
- Finally, we want to keep producing new skills. While this could feasibly increase the complexity of the game, we will address this by making these skills immediately understandable - in a way that Divination wasn’t, but Slayer is. We'll be ensuring they enrich or stay out of the core game mechanics.
This might gently increase the frequency of new skills coming out
, but not to a hugely noticeable degree."
New skills, yes plural so not just one new skill, are coming.