This was discussed in the OKANA thread.

ODOT plans to completely replace the two bridges and add a multi-modal (pedestrian and bike path) to the west side of the new southbound bridge.

As you can see in the highlighted section, the design of the bridges allows for a large clear-span section in the middle to better accommodate rowing competitions.

You can also see the plan for the bridges includes a large suspension element with LED lighting, which would provide a dramatic element just southeast of downtown. Would be similar but much larger than the Skydance Bridge.