Wow! This game is really looking great. My iPad Pro is salivating already. I hope that the game Ember has shown that a developer doing a pc and a mobile version simultaneously is a great idea, especially in a solid rpg. I bought both pc and iOS versions of that game because of that fact and as far as I am concerned there was no compromise between the two versions, both in gameplay and controls. These days however I find myself playing more and more on the iPad, rather than being stuck in one room on a pc, so it is that version of your game that is on my priority list.
Yes, we started the project back in May with PC, IOS and perhaps Android in mind - so all core gameplay is designed simultaneously on PC and mobile platforms. Controls are fine. The only thing is the richness of the graphics - we have created a lot of environmental assets and want to show them all.