I am hoping that in about five years, CD Project will perform a comprehensive melding of the whole Witcher game trilogy into one cohesive gaming package...
With a 'super-map' that seamlessly incorporates all three of the games' quest content.
With an even further upgrade to those Crysis-esque graphics (sharpened textures and shadows) from Witcher 3 2013 build.
With a complete level/items system that allows a player to 'just about' max out every skill-tree, but only after systematically playing through every quest from all three games.
With a personality/dialogue tweak to make Witcher 2+3 Triss act like Witcher 1 Triss (and giving her brunette hair, like from the books), an overhauled timeline so that you can meet Yennefer/Ciri/Triss just as soon as you like (depending on what quests and/or story threads you choose to pull first), plus the polishing and inclusion of all the half-finished romance/dialogue/quest material for Shani and Yen. (You know, the stuff CDProject locked away when they decided to make Triss "queen".) ...making the games closer to the original envisionment of letting you have three separate, VIABLE romance options that can be pursued over the entire course of the trilogy!
If all of this was done, THEN I could call the Witcher games 'perfect'.
Bonus points for implementing a non-buggy smart-leveling system, allowing for the inclusion of 'camp-followers', so that Geralt can be regularly joined on his open-world quests by 'Dandelion', 'Iorveth' 'Zoltan Chivay', 'Ciri', 'Yen', 'Triss', etc.
Double bonus points for allowing multiplayer options for all camp-followers, essentially turning the questing portions of 'Witcher' into a group endeavor with your real-life friends'. (InB4 '"What friends".)