[HMM IV OFF TOURNAMENT] "Spring Mobilization"

Sure, of course, but I don't think many people have that version. Wouldn't the tournament turn into a closed club championship for those who have this version?
And also, which version of Warlords 4 are you planning to use? Is it going to be this one?

Equilibris is a balanced version of Heroes IV, and the computer opponent acts more intelligently in it, unlike in the original, new spells appear, and some unit parameters are changed. However, you can find out about all the changes here!
Installing Equilibris 3.51 is very easy! You can download it here.
I've been playing on Equilibris for a long time and don't regret it at all; it's time to keep up with the times; otherwise, what's the point of all the patches and changes? Besides, I don't think playing on Equilibris will cause you any difficulties! It's not a new game, but a balanced one :)

Regarding Warlords 4... I'll think about it. Most likely, I'll run it on the original version until people learn all the features, but I think it's time to switch to Equilibris here too!

And finally... I'll register everyone; sorry, I was at work yesterday. :)