Just chiming in for a quick note : the characters are being redrawn, yes, it takes time yes, but there's some very specific reasons as to why we're doing that.
First, art quality. We want to keep the game's overall graphics standards as high as possible.
Second, game size. Don't forget that we're building a game that can be installed on mobile devices. As it stands, the game is about 800 MB heavy. Not too much by PC standards, but huge for a mobile game. And a large part of the community is playing on mobile devices.
Third, future update speed. Redrawing and remaking character poses not only reduces the overall file size, but also increases flexibility. DC no longer has to make full body poses, just arms or facial expressions. That way, future updates won't require some poses, if they can be made with existing art. The downside is that it's an investment of time. Takes longer now for future benefits.