Legendary Skin Reworks?

Honestly all the old legendary skins need a rework. Ofcourse they cant completely focus on the old one all the time but after seeing 2 legendary skins coming out in the same time (Riven and Yasuo) it should be kinda easy to rework the old ones if they have the time. For instance Demonblade Tryndamere would be a very easy skin to update make the textures modern and give him a recall animation possibly update attack animations and maybe update the particles. As for the older legendary skins like the magnificent Twisted Fate would probably be alot harder. They would basically be making a new legendary skin they would need to update everything about him particles, textures, animations, voice they could possibly just make that the next legendary to be released just to make it better or even just release a new legendary.