Awesome to have you around, @Kolle as we surely can do with more fans like you that love to discuss the saga.
I haven't finished the second DLC but anything expanding on the original champions is good news for me. I really want to know more about them.
Do we think right now that further DLC is needed? Would it be too large a step and be harmful for BOTW's legacy? (The Master Cycle Zero was a little shaky for people at first but as far as I can tell its been received pretty well.) I'm really not sure. I do desperately want some further explanation as to what the three Guardian Spirits are though (Dragons Dinraal, Naydra, and Farosh) as Anouma hinted at them being the actual Golden Goddesses in the Nintendo Power interview. He essentially said that they wanted to implement Dragons because in Japanese culture the dragon is viewed as the embodiment of a god. I kind of freaked out haha.
THis bit is really interesting. While I wouldn't take it as being the actual 3 Godesses I imagine they would have some conection and more information on this would be really good.
Regarding your questions while I don't think it is needed, further DLC would be welcome by me, but it has to offer substancial content.