It's already starting to calm down. On that list, you have a few broad categories, with some overlap.
Angular and Angular-ish (I use the term loosely) frameworks like Aurelia.
Observable based frameworks (Cyclejs, Angular 2?)
React and React near-dropin replacements (Preact, React, Inferno, etc)
A bunch of MVC/MVVM frameworks that are not Angular-like (Mithril, Vue, Ember...). This is where there's the most variety, namely because many of these are a bit older (even though many kept up with time).
So there's not really nearly as many as you'd think, and in some cases migrating from one to the other as need be isn't crazy.
Angular and Angular-ish (I use the term loosely) frameworks like Aurelia.
Observable based frameworks (Cyclejs, Angular 2?)
React and React near-dropin replacements (Preact, React, Inferno, etc)
A bunch of MVC/MVVM frameworks that are not Angular-like (Mithril, Vue, Ember...). This is where there's the most variety, namely because many of these are a bit older (even though many kept up with time).
So there's not really nearly as many as you'd think, and in some cases migrating from one to the other as need be isn't crazy.