No details right now, but I'd advise patience. It is currently described as "a project to complete 100% systemwide PS&E for MBTA’s PADIS (Public Address and Digital Info System) toward the replacement of all 500+ overhead orange dot-matrix LED screens in 96 stations, plus accompanying PA audio," which is scheduled for advertisement this month.
PS&E, in contracting parlance, stands for "Plans, Specifications, & Estimates, and basically equivalent to proceeding to n% design. In this specific case, you should read that as funded for 100% design.