Town chairman Andrew Fitton revealed a deal to bring a new goalkeeper to the County Ground was all but done.
"We've got Phil Smith, but we are at an advanced stage of negotiations with another goalkeeper, who will have a medical in the near future." Fitton did not name his target, but it is expected that Lucas, 31, will have his medical on Tuesday.
Lucas has spent the last two years at Leeds, having previously played for Preston, Sheffield Wednesday and Barnsley.