Making researches account-wide is a great idea! I was looking for it. But won't it make the game so easier to upgrade soldiers?
Also, I hope we won't be always chasing those "research points". I mean Travian should not turn into a simple multiplayer game where you chase gems etc.
And the last point, I think you should make new items. And you should make changes in governors to make them more online, more into game. Because in my server they are all ghosts.