Initial call-out to developers to submit their ideas for a convention center/hotel complex could happen in late April.

The center, which closed last summer for the makeover, is set to feature smaller workspaces and food and beverage areas in previously underutilized spaces.

The Three Rivers Complex, which includes the convention center, a SpringHill Suites hotel and the Toyota Center, hosts regional conferences, trade shows, sports competitions, and other events. It is a ...