I think you're both wrong.
DNV wanted that additional parallel bridge to the north before talk of an eight lane/collector lane bridge. Left is the new plan - a brand new wide bridge with federal funding, right was old with DNV trying to do it on their own.
Collector lanes also negate the need for that big overpass from Mt Seymour Parkway to Keith. Instead you just go in the collector lane, turn left on Mountain Hwy and right on Keith at Brooksbank.