There is is still possible to run a masternode? How many min requiments coins needed for run 1 masternode? And how much ROI from masternode?

You need 100,000 DIVI for the lowest tier(copper) and 10,000,000 for the highest tier(diamond).

You can find info on ROI and more in this article:

https://medium.com/@shandorengineering/when-rewards-e96540519ab2

This app gives you a quick view of ROI

https://slater.bubbleapps.io/

and this spreadsheet gives you a more detailed view as well as allows you to simulate future rewards based on changing conditions

https://docs.google.com/spreadsheets/d/1nsVXXOCG6f0VNSCMaeMNdShx13j74xHpDclFAJr6toc/edit#gid=0

oriz345