Add a task switcher sort order that is same as task manager cycling order. This can be useful because tasks can be sorted manually in task manager.
Or is it possible to cycle through task manager tasks (just like mouse wheel scrolling on the task manager) using a command like `qdbus`?
If task manager exposed keyboard shortcuts to the behavior triggered by mousewheel up/down, that would allow a workaround for bug 410594 as well. As it stands, there is no sequential forwards/backwards task switching by keyboard in kwin, which is unfortunate for workstation use.