Glad you enjoyed it! Camouflaged units are revealed by the Envoy (can be created by the Witch King), the Witch King himself, and any unit with Perception 13 or higher. Usually in singleplayer you would always have one or more Envoys around, as they can also take camps and ferry items. But I understand the camo dinos are kindofa noob killer.
Witch King healing on Easy might be the idea. Since everything else is kinda "infinite" I was always against giving any way at all to heal the King. But on Easy, anything goes.
>What are you planning to add in the future?
Besides adding even more different units, I was hoping to make some sort of campaign to teach the game and all its units step by step. Maybe even have a small story. So far I made two missions, they are in the browser version. Also, offering the current solo modes as co-op.