I think tag icons and category icons are both high on our list to replace with something built in.
And yes, theme components that prove to be very popular are certainly candidates to consider adding directly to the product.
I can’t speak confidently about timelines for particular ones that we aren’t already working on at the moment, but thinking about how to communicate more openly about our roadmap is something that has come up again recently and is on my mind to think about more in the new year.