A source in his campaign organisation said Ribadu might announce his final decision on or before Friday to lay all speculations to rest.
It was learnt that the initial plan was for Ribadu to defect on Thursday at a mini-rally in Yola, but he decided to hold more consultations following protests from some stakeholders in Adamawa PDP.
Ribadu was also said to be hurt by alleged blackmail by some of his rivals in PDP, who have drawn a battle line.
But some leaders of the state’s All Progressives Congress (APC) have held last minutes meeting with Ribadu to plead with him to shelve the plan.
Another reliable source said: “Barring any last minute hitch, Ribadu has concluded arrangements to defect to the ruling PDP on or before Friday to settle the controversy trailing his defection once and for all. Meetings to this effect were concluded last weekend.
“All I can tell you is that Ribadu will make his decision known to Nigerians. He is almost finalising last segment of consultations.
“The only thing disturbing Ribadu and his team is the increasing mudslinging and attacks on his person.”
Another source gave insights into the final stage of plans to bring Ribadu on board by some PDP leaders.