In the past. this would be "uncleanness" and punishable only by private or public reproof. To be "loose conduct", multiple events would have to have occurred and counsel given at least once.
Now, since the WT's "brazen conduct" has replaced "loose conduct" there does not necessarily have to have been a "practice" (multiple offenses), but likely that will have great bearing on their decision. If it was only ONE TIME, he will likely only face reproof. His wife forgiving him and staying with him will also carry much weight on their decision. If he has a position, there may be greater pressure to give "public reproof". I've seen this happen after the report was sent to Bethel and the JC was counseled that "private reproof" was insufficient, so that poor brother faced another public announcement.
Hopefully they will see that their life should be THEIR life and get the f*** outta there!