Thank you! I'm glad you're enjoying it, even if the cliffhangers do make you scream.

The main problem with bringing in more characters is that I don't want to spend too much time on plotlines that are just going to take up space (for example, I don't want to do an OC/OC romance that isn't going to matter to the main plot). I'll be referring to a few more trainees and canon characters, but I don't think this is the kind of story that would lend itself to a large ensemble cast.