Great news this horrible outdated and congested interchange was long overdue for an overhaul.
I see from the map along with an all new overpass and ramps, they appear to widening the 102 with a 3rd land Northbound to Chain Lake Dr. to make that section 6 lanes. Also they appear to be building new collector lanes southbound to North West Arm Dr. similar to what Highway 118 has along Dartmouth Crossing.