Now that trade marked dlc's are a thing (Like Back to the Future™ or Mad Max™ dlc's on Rocket League) an idea for a trademarked dlc that could fit The Witcher thematic and awesomeness came to my mind, and most important it would be a fairly cheap license: Van Helsing™ DLC.

Now, I know Van Helsing is not a very popular movie, but think about this, there are few to none cosmetic options in The Witcher 3, and with the physics and graphics the game has I think that's a shame, my approach to a simple yet satisying cosmetic option? HATS! Just imagine Geralt using that slouch hat!.

In terms of quests, the new Blood and Wine is obviously vampire related, so just imagine a werewolf vs vampire quest. Do you remember Van Helsing's ending? SPOILER ALERT! Van Helsing becomes a werewolf on purpose to defeat Dracula and is cured after that. Now, figure the werewolf version of a witcher....

TL;DR: If a Van Helsing™ DLC for The Witcher 3 never comes out I'll start praying to modders. It will happen a way or another.