Hm... I noticed that ProFantasy has 0 Rep. We can't allow that. I've begun the beatings.
As for the question, honestly, I have a really hard time trying to come up with new features as I've used it for so long and having been a draftsman everything seems "right" to me already. I think the thing I struggle with the most though are symbol sets. I don't know what it is, but I always feel lost when I'm going in to choose symbols and/or find what I need. I'm not sure if it is the folder structure, naming, or something else entirely.