I posted this question on the Steam Discussion Hub but will post here as well.

I plan to purchasing the DLC scenarios in one of the platforms, (even though purchasing digital content for a game I already spent 150€ worth of base game and expansions is unreasonable) but before I would like to know if the Steam version offers Touch Support for touch screens.

Soon you will be able to streams games to your tablet and phone through Steam , this would be the best option for me.

Anyone knows if its currently available or if it will be implemented?

Thanks in advance

I use a windows tablet, so this may not be 100% relevant - but touch support works fine.

Just checked the "Steam Link" app on the Android Store and touch works on that too!