Why is the Amiga os so divided? Like Morph os or Aspire Os.
All money grabbing and ego, if you ask me

But on a more serious note, to be able to answer that you would have to dive into the history of the Amiga.
There is an excellent website that covers the Amiga history, e.g.
http://amigahistory.co.uk/ but unfortunately that seems down for me atm (forever ?) so instead try wikipedia
https://en.wikipedia.org/wiki/History_of_the_AmigaThere are 3 camps, AmigaOS4, MorphOS and AROS. 4 camps if you count classic OS3.x as well (i leave the hardware side of things for what it is)
AmigaOS4 and MorphOS are those that started a continuation of the platform (when the original developer went bankrupt) but their choice of graphical software components differs (MUI vs ClassAct (or whatever they name it these days) ) as well as the hardware their OS runs on.
Neither of those two are open source, while AROS is (hence its existence) and AROS had another goal (running on different hardware).
As for AspireOS vs Icaros Desktop vs Broadway vs Aros-One vs etc. etc: they all have the same base (AROS) and build their distribution on too of that. Same answer you would get when asking why are there are (so many) Linux distributions.
They simply serve another purpose, Icaros being the flagship (includes most if not all available software for AROS), ApireOS focusing on simplicity and speed (lower end hardware) Broadway i've mostly seen in a hosted fashion, and i have no clue about Aros-one (as i haven't tried it yet).
Is there a list of features to be developed, pilanted?
http://www.aros.org/introduction/status/everything.phpNo idea if that is still being updated though. Besides that, if you look at the commits made in ABIV1 you can see that a lot of work is being done towards the build system as a whole (and that is not listed anywhere else afaik)
I mean this. On which subject does Aros, which has been developed, want to create this shine?
The fact that it can run on any hardware in existence (well, sort of) and is open source. Think of it as ReactOS on steroids
Aros needs a light. People should see this light. In this way, coders attract the attention of users.
...
Now I want this dream to shine, get rid of the fragments of the past and come to the surface.
Ah well, you can always dream of course. In my personal opinion: that ship has sailed on many occasions. And do not get me wrong, afairc there are moments there was a bit of code-sharing between OS4, MorphOS and AROS or idea's that could have gotten some attention in the big world.
If there is one thing this project thought me about Amiga (and its successors) is that there seem to be quite a big issue with regards to timing in that opportunities are simply missed (or not acknowledged) over and over and over again, and for whatever reason(s).