For now, it's not about imposing anything (otherwise, they would be pushing for a TE-only format), but about developing an option that would satisfy everyone as much as possible! :)

Vigo suggested a good option, in my opinion, one that would satisfy everyone more... to hold competitions across different versions... in boxing, there's a "champion according to version X."
I don't see any rational point in bringing everyone under one version, one template, and one set of rules... does someone really want to be the very best among all? :)
If Nagan intended this to identify the strongest among all, then, in my opinion, now is the time to clearly define how much the quality (player pool) can be sacrificed.
Moreover, in this format, the option to determine the very best is not lost... they can arrange a battle between the winners of the finals in different versions.

P.S. Considering the feedback from those who have participated in such gatherings before or in the recent qualifiers in Kyiv and Michurinsk, the most important and enjoyable thing for the majority is the participation itself. And it is precisely in this way that it is better to promote TE or 8mm6, because players, having seen all this in action, will most likely want to repeat this and it will no longer be so important to them which version or in which city it takes place...

All the arguments that TE is better because it is progress are absurd, in my opinion. Progressive Heroes players should have long ago been disgusted with Heroes 5 TOE 3.1 and be waiting for Heroes 5 4.0 or Heroes 6. Or does anyone argue that "the dynamic combat and simultaneous turn in Heroes 5 is inferior to the TE version?"
You are all conservatives to varying degrees, some are SoD, some are TE, some are Heroes 2, and some haven't even forgotten about chess... but just considering yourself a bird won't make you fly.
No offense