The Ural-Siberian Championship for Heroes of Might and Magic 2018.

this won't improve the situation for hardcore Soda players

The point is that there are many offline Soda tournaments compared to Heroes of Might and Magic (well, all of them have been Soda-based for the last few years), so there's a desire to try Heroes of Might and Magic. Also, there are a lot of players who don't play Soda, and this gives them the opportunity to play the game they want. And finally, hardcore Soda players can always agree among themselves; if someone doesn't like the format, I'm not forcing anyone, if you don't want to, you don't have to.