I have been contemplating purchasing Dragon Commander Imperial Edition for weeks now, the only thing that has been stopping me from getting this edition over the standard edition is unknowing what the Dragons on Earth Campaign Map actually is? Is it like an additional story dlc that involves this new map? Does it offer a certain amount of hours of additional content? Can some please explain to me what this extra feature includes exactly? :P
This is just pure speculation but I think only the campaign map is going to represent earth and it ends there. The battle maps will still be the same. No additional story, and specially, no DLC as the developers are quite against about it.
If there are additional stories/modes, Larian would know it more themselves.