FYI, I just found out that ADOT has exercised another one of its contract extension options with Skyline Products for new full matrix DMS as of yesterday for another full year through July 24, 2017. I think there is one contract extension option remaining through October 24, 2017.
In the Phoenix area, several new Skyline DMS are in the process of being installed on I-10 from Litchfield Road to 83rd Avenue, as well as on I-17 from Deer Valley to Daisy Mountain Drive, with one currently being installed on Loop 303 at the approach to I-17 and one on US 60 west of SR 74. Other planned installations for this year include eight on the Loop 202 SanTan Freeway from Dobson Road to Ray Road, one on SR 87 just north of Thomas, and one on US 60 east of SR 73, the latter two most likely being 17x6 foot, 105x27 resolution front access units, rather than 31x8 foot, 125x27 resolution walk-in units used on the freeways.
There are also several other future proposed locations for new DMS in the Valley, however, they probably won't be included in the current contract with Skyline. Proposed locations include 16 more on I-10 from Loop 202/SR 24 to Baseline (yes, 16 more) and six more from Miller Road to Estrella Parkway, four more on I-17 (one being at the southern terminus on the approach to I-10), five more on Loop 101 (three more on the Agua Fria Freeway and two more on the Price Freeway), six more on the remaining portion of Loop 202 between Higley Road and Apache Trail, and two more on the US 60 Superstition Freeway between Ironwood and Tomahawk. Other Phoenix area roads proposed to get new DMS in the future include Loop 303 with 26 of them, US 60 Grand Avenue with eight, SR 74 with three, SR 85 with three, SR 87 with four, and SR 88 with one. ADOT has even plotted out future sites for DMS on some unbuilt freeways, including 12 on the Loop 202 South Mountain Freeway, 14 on the SR 30 I-10 Reliever, and two on the SR 24 Gateway Freeway.