It would be amazing if we could fully customize what we want to see in the "quick-view" opportunity card. Each company has their own requirements and necessities in terms of opportunity information.
I've attached an example card (found from another use) with modified information on an opportunity card. Something similar to how we customize widgets so we can all see as much or as little information as we need.
Having this ability customizable and specific to each pipeline (or all pipelines at once) would be even better!