For one thing, Collections is coming to mobile. Since Collections sync between devices, you'll be able to view, manage, and add to your Collections from iOS and Android devices. This is coming later on this spring.
Another new feature is called Smart Copy, which lets you copy and paste content while preserving rich text format. That means that when you copy and paste, it will keep links, font, and more. This is coming to Edge Insider channels next month.
Password Monitor is designed to alert you if your password has shown up on the dark web. As long as you have autofill on, this will work. You'll find a new dashboard in Edge settings that will provide a list of all of your compromised passwords. Password Monitor is coming to Insider channels within the next few months.
An interesting visual change is that Microsoft is adding support for vertical tabs. Yes, you'll be able to set all of your tabs to one side of the screen, although it's not clear if you'll be able to choose which side of the screen (the image shows the left side). This feature will arrive in Insider channels within the next few months.
Other features that Microsoft touted are improvements to InPrivate mode, improvements to Immersive Reader, Give with Bing, and how Edge is the only browser that lets you stream Netflix in 4K. All of those features are available now.