I wonder how big the Soul Cairn will be in terms of both content and size of the landmass we get to explore. I hope theres a lot to do there as it looks like a really cool place. I know it won't be as big as the Shivering Isles but I would suspect it being at least as large as a Hold or two. It would be a shame if the size was rather limited.

It should be at least the size of blackreach or I'll be very disappointed