Hello!
I've asked that question once long time ago (maybe at times of the Closed Beta) and tech suppot answered me that your team hadn't resources to implement that feature, but I hope you can do it now.
What do you think about built-in feature that allows player to create a video record of his last played match?
Let's say I played a game and was really delighted with it and wanted to share it with my friend or upload it to YouTube. To do so I just click a button on after-game screen and the game engine creates it and saves in some folder.
I believe that the game has some sort of inner game-log that contains all significant actions that was performed by both players during the match: what card they played, what they targeted with it, what hapens next, when those actions was performed, etc.
The game engine could use such log to render the match and save it as video. It also could allow player to render it in much more high quality than his PC could handle to render in real-time because now the time is not such important thing than it is during the game.
Such feature definitely will increase amount of interesting video-highlights and increase Gwent's popularity.