One thing I’d like to see incorporated and I don’t think would be hard would be registration for free events. I realize you can just put $0 in the cost and the user can proceed. However, they still have to click “Buy tickets” – if we could have the option to change this to “Register” and to have a checkmark that allows user to check “Free” for cost (or something like this) it would help tremendously.
We are using the "Tickets" for paid tickets, and "Register" for free events. No plans to make the text customizable for the mid term.