The release date of the expansion pack is approaching.

I think you're being a little... evasive. If it were just those few things, your tournament rules wouldn't have so many prohibitions and restrictions.

Well... what are these major prohibitions???
Is Conflux prohibited? Are there restrictions on certain heroes...? These... well, that's standard for SOD, to prevent overpowered strategies.

4) Changing the starting skills of Elementals - you ban them anyway (so there would be something to choose from)
5) Necromancer patch - Necromancers are almost unbeatable in SOD...
6) 2 starting buildings in a city always - in SOD, there can be 0-2, depending on luck.

I asked you not to promote TE... I know what it is and how it works, because I play it too.
I still prefer to ban Conflux, even in TE.
About Necromancers... I've already said, it all depends on the player's skill. If the player is weak, Necromancers aren't any more scary than a sleepy cat. But if it's a pro, then yes... you'll have to fight. And even then, you can compete with legions of skeletons.
Buildings... hmm, yes, I forgot about that. It would also be good to add that to SOD... Or, at worst, you can restart if it's that important - whether you have level 2 or not (because in some castles, level 2 is essential for further development)