If there’s one thing you can complain about when it comes to Dark & Light, it’s not failure to patch. The game patches a lot. And yes, there were still some unpatched bugs lingering over the game’s holiday season, but the latest dispatch from the community team specifically apologizes for those issues (problems like knowledge nodes failing to fully level up and Frost Wyrms lacking their breath attack). The developers are trying to find the issues and fix them.
The developers also have lots of plans about what will be added fresh to the game in 2018, although the update is rather mum on what those additions will be. It is clear that the feedback from the community about new spells has been taken into account and passed along to development, so you can expect to see some of those offerings available. Beyond that? You’ll just have to wait and see. Hopefully it’ll be cool.