Scottish Premier League clubs will vote on a reconstruction package on 15 April in the hope of it being implemented by the start of next season.
All of Scotland's top clubs were present at the Hampden meeting to discuss the proposed three leagues of 12-12-18, which would split into 8-8-8-18 after 22 games.
It will take an 11-1 vote to pass the motion, which will also have to be approved by the Scottish Football League, which has yet to set a date for its vote.
Dundee United chairman and SPL board member Stephen Thompson, said: "Everything is positive and moving forward. There is a process in place and we will take it from there."
Asked if he thought reconstruction would be in place for the start of next season, he added: "That's the plan."
St Mirren chairman Stewart Gilmour was more cautious - he said: "We had a good discussion. There was good dialogue and difference of opinion but a long way to go.
"I don't know what will happen. The SFL clubs are still to meet and until they come back. There is a lot of tidying up to be done."
Ross County chairman Roy MacGregor admitted he was concerned with the practicalities of the split.
He said: "There is a lot of debate to go on yet and we will see how that goes. My concerns are for the fans.
"The fan is the most important person, not the clubs, not anything else and I do believe that considering what the fans are getting is really important."
Ardley has brought in the 27-year-old as cover with a host of Dons players currently sidelined through injury.
"Kelly can play anywhere across the back four," Ardley told the club's official website. "He came in and trained with us last week and looked very good in training. We feel that he will be a big plus for us during the final stages of the season.
"Kelly had a bad injury a few years ago when he was at Charlton and he was at Ipswich earlier this season, mainly as cover, but he was released in January.
"We have signed a player who was playing in the Championship at his peak so hopefully he can bring that experience for us.
"Kelly came highly recommended by several people who had worked with him and it is good that he is not another loan player.
"He is what we need at the moment because with Peter Sweeney, Jim Fenlon and Will Antwi all out and Curtis Osano still struggling we are a bit short."
Youga is available for Tuesday night's trip to Southend.
