Namco Bandai is looking to bring the popular Action-RPG title Dark Souls to mobile in the future. However there is one major hurdle that the company needs to overcome in order to have this work and that is convincing the developers of the game, From Software, that porting the game to mobile would be a good thing.
The concerns that From Software currently has is in regards to the changes that would need to happen in order for the game to work properly on mobile devices. This mainly concerns the controls for the game. Porting it from the console version over to touchscreen controls is a worry that From Software has, they don't want the experience ruined if the controls don't work out basically.
We'd like to bring Dark Souls to mobile, but it's very difficult because the guys at From Software are very much console oriented. To change their mind about it, it takes quite a while. I think there is a need to redesign the way you re-roll in the game to make it a bit more casual, so with shorter sessions, but definitely it's something we could bring to mobile in a very successful way. - Namco Bandai director of global strategy for mobile Alex Adjaj.
So while the future of a mobile version of Dark Souls is still up in the air, the fact that both companies are talking about it is a good sign. This also means that if the game does come to mobile, it won't be for awhile still.