4 is still under development and Ken is still around just not really in the forum all that much. He’s working on theming and has that nearly complete and has required a pretty significant amount of work. But hopefully will be out in a 4.0 beta in the next couple of weeks once it’s more stable.
As for upcoming features we have learned not to discuss such things until they’re either out the door or extremely close. So unfortunately you’ll just have to wait and see.
Jared