Interesting.Arxiv paper postulating a "small hydrogen atom"
It's not being well-received by Mills followers because the author rejects Mills, and is apparently attempting to ensure that his/her hypothesis is compatible with the established laws of physics. How compatible it actually is I'm not in a position to say, although I can't imagine that it doesn't run into some of the same problems as Mills' "theory" does - most notably that if there was a state below the ground state then that would be the ground state and would be where you'd expect to find most hydrogen atoms in nature.
Not yet published in a relevant peer reviewed journal, many revisions, single author, ...