Earlier quoted context omitted.
That's actually a good idea. It's really frustrating how (in other types of news) a lot of buzz can be generated and then just silence and we forget it all and move on. But it's not really something that would sell well. Not many people care about yesterday's news, people want to know what's coming next and not what came out of some magazine's prediction several years ago.
Since we're talking about ideas for news services: I would love to be able to get a list of the most important news in a month or a year. Not a top 10 list but simply a way to try to catch up if you miss a few months.
Also, there are physical magazines that get issued monthly (though it's rarer for political and "news news" topics).