There´s a new method of upscaling imagens using Artificial Inteligence, based on Deep learning. Here´s the results of my tests with it (called ESRGAN)
And there is another AI model that change animations to 60 FPS (Called DAIN)
Original (about 10 fps)-> 60 fps (gif aproximation to post here)->
And the two methods can be combined:
Its possible to make a 4k Remake of ragnarok with this?