I do agree that once the MatrixBrute is due to be released then the manual/misc stuff will appear on the Arturia support page. I don't agree that it will be until mid next year, or rather, I hope it will not be that long. If is is beginning to look like it then I will probably cancel my order and, perhaps, start looking at something else like Doepfer... or, possibly the Deepmind 12...
Having said that, I do feel that Arturia are actually gearing up for a release... I sense a sort of vibe in the air...