At this point Larian being quiet likely means they are still figuring stuff out. Physical editions being pushed to the 30th I get but digital delay information is unreliable at the absolute best unless that information comes from Larian or one of their confirmed digital distributors which there are only two besides the Larian Vault and they are Steam and GOG.
What concerns me the most is that they seem to be so overwhelmed by problems that they haven't/can't/don't know how to best collect shipping information from their backers at physical tiers and this has me VERY worried at the moment.
