Hope they are able to get rid off around 60 to 70 percent of the CGI in more daytime (light) scenes in order to hide the more noticeable CGI and hide the rest by blending it in with 2D animation.My guess is that it'll be real editing, meaning they're going to lengthen or shorten cuts to improve the pacing and maybe redo some of the voice acting and musical arrangement. Redrawing or touching up some of the worst visuals would be icing on the cake!