You could probably have the fans make you guys one that's a bit better. The dream vid? It's more on the game, you had elements there, the casual music is a good intro and should have had a more dramatic up beat (IE climax) to the end, getting the player excited. Some would say add all the interfacing and while interesting that can turn people off as well. My dream intro...
1. Opening scene as you have the game coming , name, keypoints flashed on the screen.
2. Zoom in to see the heroes then with text short blurbs like you had with Explore, Adventure... show a quest popup then the heroes go into combat.
3. Zoom out from that combat to full zoom out map view showing the tatics of the game. "Tactics, Explore, Diplomacy and more..."
4. Zoom back in to city view and show buildings being placed, fast foward.. see the town up close in action as it expands.
5. Then show a ton of combat, IE start simple ,work up to the nice spells, dragon at the end.
fin.
Thou it's more easy to imagin then to implement, sadly I would do this but time for me as you guys is short. But you asked , so there you go. Maybe again a fan that has a bit of time can do something. Has to be good thou, not some half baked you tube video 
If I find time I will surely try thou.