MVP, co-founded by Paul and Nakisa Bidarian, is the organiser and on Wednesday pre-sale tickets were still available to buy for the event at State Farm Arena in Atlanta.
The venue is also still listing the fight in its calendar.
Responding to the mounting speculation, Bidarian said on social media: “Fight is not in doubt. Never has been. Stay tuned.”
Paul v Davis was set to be an exhibition fight but there has been no clarification about which rules will apply.
Davis is a lightweight world champion, fighting at 9st 9lb (61kg), while Paul has fought most of his career at cruiserweight, which is 14st 4lb (90.7kg).
The fight would not count on their professional records and a weight agreement would need to be reached.
The GAEC was scheduled to vote on the issue on Thursday.
“They probably evaluated a situation – knew that their weight differences were too much,” said Thompson.
BBC Sport has asked MVP for comment.