about making fillers about some big characters past, i think that will happen when they have a really big turn in the anime, like Kakashi meeting with Obito, as a renimation or if Obito was Tobi, i think they will make a filler at that time, and like talking 'bout Orochimaru in a fight or anything, so they bring his past, but i agree 'bout these fillers being shit, and i understand why, but it's just so anoying, and i hope they make good fillers like "Chakra" filler, something with a story, not some shit episodes just to give a space between the Manga and the Anime, so i kinda agree with you :D
You know, if you think about it, they probably couldn't let him live. If a rival village had yoga and trained him to use his ability, he would be unstoppable. A ninja that controls the weather is OP IMO.
Don't have a problem with the fillers,just these annoying ass characters and stories thats in them sometimes, why can't they make fillers of tobirama ,HASHIRAMA ,Minato and who were his parents and clan, or orochimaru and his clan...I MEAN WHY NOT MAKE FILLERS ABOUT THEM GEEZ!!!!!!!!!