Can someone please point me out towards resource explaining these new super nodes, when they will be available, detailed reward structure etc.
I see 20% of the block will go to the node operator which means much lower reward for the miners, right.
I see it will require 500 Zen which is 12x more compared to the standard node. Yet, the reward will be 6x higher. So why would anyone set up super node as opposed to running bunch of small, standard nodes?
What do I miss here?
Here you can read more about:
https://zencash.com/assets/files/Zen-Application-Platform-Whitepaper.pdfNode operators will now receive 20% of the block rewards, which is an increase from the 3.5% previously. This 20% will be evenly split between secure nodes and super nodes. Treasury will receive 10% of block rewards, which is an increase from 8.5% previously, and
miners will receive 70% of block rewards, which is a change from 88% previously.

Yes miners will get less,but as you can see this news is accepted very well, so I think this can be only positive change.

Why Super Nodes?
Probably because this can be less expensive, and easier for setup instead of setting up 10 nodes (you must have 10 different dedicated servers). Now you will ask me, why Secure Node? Because this is very accessible to average holder and with small investment you can join and this is not the case with other projects.
I see, thank you for your explanation, I might dip a toe into one node and see how it goes from there.