I agree with the majority of the posters. Personally, I think the HS version looks a lot better. That's not to say that DAZ models can't look beautiful, it's just not happening here yet.
In all honesty, I very much recommend the devs to abandon this version and finish the original. Creating one version of a game is difficult enough. If you spend your time making two, the quality of both versions will plummet and you'll spread yourselves too thin and burn out. If you really want to use DAZ models for a game, then my suggestion is to finish the HS version of this game then create a new, different one after you've learned DAZ better and built up a decent collection of assets to use. Regardless, good luck.