The “Revive the Might and Magic universe” project.

It's too ambitious. Start by creating content for the fourth installment, since your story revolves around the heroes in that game. Forget about the other parts and create a single, high-quality campaign that incorporates all your stories. The most important thing is to use high-quality and engaging maps. If you decide to work on this, I'll provide you with maps for Heroes 4.

We will create campaigns for the fourth installment and start with the first one, and we'll work on the other installments later. Initially, the campaigns about the artifact were planned to be made on the engine of the fifth game, but it's better to create them on the engine of the fourth game, and then (if mapmakers are found) remake them for the fifth game's engine.
General ZeT, if you have the opportunity, start creating campaigns for the fourth game right now; if you need help, feel free to ask...

Added 2 minutes later
General ZeT, please sign up in the introduction thread.