Forum member Jeff Martin has been publishing and occasionally updating his arguments for Christian universalism in Optimism Out of Control - A Clarification of the Gospel. This can be found at Amazon here: amazon.com/Optimism-Out-Con … 151523990X
The book is also available for free from this page at Jeff’s website: /www.dgjc.org/formats
He has included many of his discussions from threads here at the Evangelical Universalist Forum along the way.