This goes under the category of UI improvements, I guess.
The Graphs are usually one of the most underused features of the game IMHO because you either create a routine of regularly checking the graphs to look for undetected UFO activity, or you simply ignore them to speed gameplay and rely on your radar network.
So, when I was switching between both Graphs and Geoscape, I realized that what I needed was some sort of alert system on Geoscape to avoid having to regularly check the Graphs.
Something like this quick copy/paste I've attached, where the Alien Activity graph has been pasted into the Geoscape. Now if that graph was updated every 30 minutes or so, then the player would know when something interesting is taking place, and then check the Graphs to see the region, etc.
And this feature could be made optional - press a key and it would pop up in the Geoscape.