I really like the next-gen simplified Jira. The UI is better and most of the complex features that made the classic Jira so difficult aren't needed for a lightweight process. And I love the Roadmap feature!
However, every single team I ever worked on needed to close issues with the status of Won't Do. It's just how life works - some things you do not work on.
So how come when you create new columns on the board you cannot create a Won't Do column and have it set the Resolution on the issue???
Because of this single omission I had to stay on jira classic. And I don't even see this feature in the roadmap.