integrate with modern webparts
This seems a long shot, but one of the big short comings with the new Communication sites is the ability to seamlessly create content, have it approved and then publish it to the modern webparts.
I'm not sure if it's achievable but our aim (we can't be the only ones) is to allow anyone to create content, have it approved by a group of approvers, then push that content to one of the many modern webparts, such as Hero or News.
Currently this approval process is missing from communication sites and then when created, the webparts need to manually updated. I have no idea if Nintex can make use of the SPFx to "integrate" with the wbeparts and update their content. I have a request in with Microsoft to try and close this loop also.