It must be possible to limit possibilities by following this clue: " From the very first day, from the very first day, I see people discussing something, and every time I say: “God. How I want to tell them … "

First question: What does he mean with 'the very first day'? I assume it is the day when BG3 was announced to the general public. So on that day people started writing about what they would like to see. We know it was written, because Sven says he sees people discussing. So ... is anyone willing to find out at which day BG3 was first announced and on which discussion platforms the announcement was discussed? Then it is only a matter of looking at what was written on that day. This is likely to at least limit the options.