Hello! I ma not exactly planning on expanding card range due to limitations of my system, for example any moving card would not only look confusing without animations (which I can't do due to much simpler approach than original Inscryption) they also would probably break like everything. In case you want to use current sigils you can create your own custom cards, I kinda explained this in my devlog when I added it, although it turned out that itch didn't display image correctly.
As for updates in general, there wouldn't be much because game is pretty much finished, currently planning on 32bit release and a few lobby options, but Unity yesterday deleted all editor versions, so this is delayed a bit.
Also currently without creating custom deck it would be default to one card of every type, and I assume this is why it might seem limited. However I should ask you, I have almost all act 1 card textures(excluding infinite mod) and I have implemented most of them, so is something wrong with your game that you didn't encounter this much cards?
Thanks very for playing my game.