Parker, the top contender with the World Boxing Organisation and mandatory with the IBF, faces Alexander Dimitrenko this weekend before a proposed fight against red belt holder Anthony Joshua in November.
As Joshua is in talks with Wladimir Klitschko and expected to delay his duty to face Parker until March, the New Zealander is considering going a different route following Tyson Fury’s determination to take time out of the sport.
Fury could be stripped of his WBA, WBO and IBO versions over the coming days, leading to all three organisations having decisions to make regarding who fights for the belts left behind by the current king.
“I’m not sure about making the Parker v Ruiz Jr. fight at the moment as I need to have a discussion with Bob Arum, but so far Bruce Trampler tells me everybody is keen on his side,” Lonergan exclusively told World Boxing News.
“I’m guessing Eddie Hearn is waiting to see what happens on Saturday night with Dimitrenko before he starts talking to us again, which I can understand.
“So I should have a clearer picture a couple of days after the Parker v Dimitrenko fight. Both sides would want Ruiz to fight Parker should Fury be stripped, as long as that fight is for the WBO world title.
“In terms of my preference to Ruiz or Joshua, they are both really appealing options but I will sit down with Joe Parker and his team after the Dimitrenko fight and go through both options.
“The situation is very fluid at the moment and things are on the table now that weren’t there a week ago.
“All I know is that with Joseph Parker being number one and mandatory in the IBF and number one with the WBO, he couldn’t be in a better position,” he added.