Some Detroit schools will see longer academic years and preschool programs will be expanded under a new strategic plan announced by state-appointed emergency manager Roy Roberts.

Details of "Neighborhood-Centered, Quality Schools" were released Thursday.

View: DPS Strategic Plan 2013

Using a community schools model, the district also plans to keep programs at some schools available 12 hours each day, seven days a week. Preschool programs also will be expanded for all 4-year-olds in the district.

Watch: Roy Robert's announcement

Two school buildings will be closed and Northwestern High School's academic program will be discontinued. The Detroit Collegiate Preparatory program will move from a wing to the main part of Northwestern's building. The Harris professional development building also will close.

The plan comes after a 5-week strategic planning process involving students, parents, teachers, principals, clergy and community leaders.