I knew Tor Project has been shifting away from "hidden services" for a while but I missed the email where teor clarified things for blog posts and such in late April [0]. Also, I wanted to avoid using "onion resolver" as it would be a worse misnomer than "hidden resolver."
Re. OnionBalance: we're working on a few ideas for this, but nothing conclusive yet.
0. https://lists.torproject.org/pipermail/tor-dev/2018-April/01...