One of the biggest opportunities for Akiflow is to provide longer-term planning tools. Most task managers (including Akiflow) divide the world of tasks into, basically, today/tomorrow/this week/someday.
Sure, Akiflow has the "plan" feature where I can throw a task to the following Monday or whatever, but requiring a task to re-appear on a specific date is not always what you want.
Often, you want to look at different time horizons: this week, next week, the next few weeks, next month, next quarter, this year, etc. and bucket tasks into those general categories where you can hold them for future review and triage.
Functionality like this, which lets me plan/manage different time horizons would be game-changing and would make Akiflow the best choice for "single source of truth" for all the things I want to get done.