Masternode will be 100k ESS, supernodes details are still to be fully confirmed! Yes, the team will be
updating this article with the weekly updates and progress
So for supernodes will be needed more coins than for masternode? As I know for mastenode people must have much more coins and must have more technical requiments (good VPS or dedicated servers etc.) while for supernode will be enough running on PC.
How many max supernodes will be running? Or amount of nodes will be unlimited?
You're probably talking from PAL or similar coin perspective, but this is ESS...it would be crazy to put more demand on masternode
owners, and then reward them only fraction of what supernodes get

Yes, Pal Network for example has supernodes and masternodes. For supernode needed 100k coins and for masternode 1 million. And Pchain for example have similar strategy.
But yes, I see now that masternode have less rewards in Essentia. But running supernode now cost only 70$, for masternode even less... and how many rewards people will get? And how much cost VPS or dedicated server? It will be not profitable even pay for server...