I think we're yet to confirm how it was precisely done, but they moved Edge to be in the same deck 5 forward space that Vibe is and they now share the outdoor space in the nose of the ship. What is hard to tell from photos is if they simply divided Vibe in half and really reduced the size of it, or if they pulled some other crew space or under utilized space to make the overall Edge / Vibe area larger than the original Vibe footprint.
Either way, I do feel like this dry dock benefited Disney and not the consumer overall. I agree, nothing about a concierge room on deck 10 midship right in the middle of everything appeals to me. I have to hope they charge less for those rooms.