1C is sitting on a mountain of gold, yet they don't realize it!

[Totoro]

I personally like King's Bounty series very much the way they do it but it's true that no game can survive for long using the same formula.

That doesn't mean this game should be turned into HoMM-like multiplayer though because then it would be just another HoMM with a few different things. Neither I would like the idea if it was turned into MMORPG because I have bad experiences about good games turned into MMOs and they have never been as good as the offline version.

It's the strong singleplayer that makes King's Bounty, a large world and the long journey. That's what makes King's Bounty so interesting and it should stay that way. Some multiplayer aspects are welcome like leaderboards but developers should focus on improving singleplayer.

I open my arms to deeper plots and more personal characters. I would also like to see more dynamic NPCs. Like companions that follow you to your battles and heroes that don't just wait/patrol in some place but wander around the world. Maybe enemy bounty hunters coming specifically after you. I'd like to see rural area and castle management like building protections, improvements and hiring troops to protect them from attacking enemies. Getting friends to protect a castle for you. Conquering new areas and gaining taxes from them. Maintaining the citizens attitude towards their landlord.
I'm talking about strategy outside the battle-window.