While I find the actual probability that such has occurred to be extremely low, I will say that it's probably best for those who are emotionally invested in this (i.e. most of us) to consider it as if all those files are gone. I say this because it means less likelihood of being disappointed. If CoH never returns, it won't matter if the files are there or not; easier, perhaps, to assume they're gone rather than hoping they aren't and still being disappointed. We can all be very pleasantly surprised later if they come back, that way!