The authority and the Lilco board and shareholders would vote on a final agreement.
In June, the authority voted to put up billboards for advertisements, which will bring in about $1 million a year.
But under state law the authority has broad power to set tolls and could simply vote to return them to the present rate.
On Nov. 19, the authority voted for the increase without public discussion, and has had to answer a battery of questions ever since.
The authority has not yet voted on whether to proceed with the conversion.
The authority, which has broad powers to determine fares, could vote to keep the increase in place.
The following month, the authority voted to reject Johnson's order, saying it did not support the proposal to close the stations.
The authority voted last week to give $120 million to the tunnel project.
The authority raised its offer to $10 a share last week and then voted to go ahead with a proxy battle.
The authority has voted to accept the new policies.
