In the 2035 plan, there is a new proposed freeway on between the I-680/ County Road interchange in Iowa and the Storz Expressway:
http://www.mapacog.org/images/stories/lrtp2035/07_Future_Streets_and_Highways.pdf (http://www.mapacog.org/images/stories/lrtp2035/07_Future_Streets_and_Highways.pdf) (Page 14/22)
Wow that "beltway" would be highly ambitious. Are they really expecting Omaha to sprawl that much?
They've also got a proposed freeway connection between the south end of the US 75 freeway and the northern I-29/US 34 junction in Iowa; something I too have thought of.
They should add a project to elevate I-680 out of the floodplain of the Missouri River. This past summer was a clear indication they need to do that.
^ NDOR's website shows the connection (to apparently be signed as part of US 34) being built with two at grade intersections
Map of section closer to river:
http://www.nebraskatransportation.org/projects/bellevue-ne-approach/images/main-proj-aerial.pdf (http://www.nebraskatransportation.org/projects/bellevue-ne-approach/images/main-proj-aerial.pdf)