A few more details have surfaced for Guido Henkel's upcoming cRPG Thorvalla, including a tweet that confirms it will indeed be crowdfunded on Kickstarter "soon". He also posted a bit more on the Crystal DSA forum:
For me, single-player, means there's only one player active, in contrast to multi-player, where several players play together or against each other. Thorvalla is party-based, and gives the player control of all party members.
The main version will be English, which has become my main language - you will not believe how hard it sometimes is to still piece togehh decent German after 16 years, because one's vocabulary is lost - and because the team is just here in the U.S. I'd like to do a German version, but that remains to be seen, and will probably be a stretch goal for the Kickstarter project. This means that if there is enough money to pay for translations and so, I'll definitely take it into consideration.
No, the focus for Thorvalla is solely on personal computer versions. Windows, with OSX and Linux as stretch goals.