We are working on workflow for content approval and change control and probably will have an announcement about it in the very near future.
Related information bar is not something to expect near term, its not something I'm working on any time soon. You can pretty much follow my plans from my Road Map. It sounds like an interesting idea, but it also sounds like something complex to implement and the cost/benefit of me working on tha at this time vs other things I have in mind does not compel me to shift gears from my road map and work on this idea. Maybe someday I will get to this kind of thing but there are many other things I plan to work on first.
You can be certain that I read every post in this forum and I consider every suggestion but I'm neither the Wizard of Oz nor Santa Clause, I can't promise mojoPortal meets all requirements for every project nor does it hurt my feelings if you use something else. I'm very pragmatic about it, if you find mojoPortal useful then use it, but if you find something else that meets a particular project need better then use that. mojoPortal will keep evolving and will meet more and more needs out of the box but it will never satisfy all requirements on any laundry list of requirements. There is always room for people to develop custom features to meet the needs not satisified out of the box and there is room for third parties to develop commercial add on features as well.