How about more pockets on the bibs, like up at the chest; and/or an inside bib pocket. Early and late season I find myself either not using my coat, or taking it off if it warms up during the day. When I do, I lose all the storage of those jacket pockets, would be nice to have hole hopping.
Also like the pass through slits on my walls bibs, makes it easy to get into the pockets of my pants/jeans. Don’t know if I’ve seen that on an ice bib, would be nice with a magnetic closure