Another suggestion is to consider cosmetic sorcery spells, like changing the weather and say/night (only at the circle). My sense is that it would be an enjoyable addition in the game without disrupting to many mechanics. Personally, I just want another sorcery time regardless of what is in it. There is just something about having a book shelf of arcane tomes (even if not very useful), that really brings out the immersion (beyond just the decorative pieces).
Also, while not in line with the topic, it would be interesting for sorcerors to spawn a meteor fall with an expensive ritual. I am not seeing this as being too game breaking and would be a nice bit of flare. It isn’t necessary that such additions be useful or even economical. That is a critique that I think have very little weight.
Thank you for your time.