new kanban view
Would it not better to show task details on the right panel an set cloumn to the context menu ? Also give an option to deleted cloumns if no object in there ?

Until now, task lists have only ever been visible in Tasks, Kanban or Project. Will this still be unified, so that you can see everything in one overview and also the mobile sync works ?
Unfortunately, KANBAN cannot display multiple boards at the same time.
I would find the idea charming that KANBAN boards are not task lists of their own, but one can assign a KANBAN board to a task list for display. Best even by multi-select, then you can realize a boss overview and a team overview. An address list can belong to none, one or more Kanban boards.
In order to be able to use KANBAN also fast and dirty, could be created in the background also always a new task list per board which is always linked in the standard.

A perfect complement would be, of course, the typical filters; most importantly, almost the jurisdiction.

Maybe an approach to combine task list open source with KANBAN Pro and create a really powerful tool in the team for the Pro users.
Also the long awaited import function from task list is now available for KANBAN. Here you can perhaps simply set the status of the 1st KANBAN column by default.