I have no idea what the numbers, the team behind this forum is able to see, show (it might be devastating, it might also not be that bad, compared to other sites, including "DPReview's best alternative"...) but regardless - I think it's too early to declare something 'dead' which hasn't even properly launched yet in its full capacity. Yes, as a forum it might be quite challenging, but given the circumstance, that dpreview will continue to exist, I would judge it (once everything is properly set up and a couple of editorial content is there) as its own thing, rather than a dpreview successor, which just isn't needed anymore.
I'm personally saddened by the fact that this forum lost some (from my impression) reasonable and friendly contributors like RetoB or raythentic and also didn't manage to attract a number of undecided ones, which might be in part attributed to the continuous thread derailing, but I still think dprevived can and will be an interesting and unique place in the realm of digital photography sites and hope many of the people I had the pleasure of interacting here, are going to contribute in the future!