It would be really cool if we could have a range of items that would let you move between different parts of our homes, specifically the larger ones, but not necessarily. This would make it really possible to differentiate houses even further.
The way I imagine it working is similar to the storage collectibles, You would have "Door A", "Door B", "Door C", "Door D", which would all be the same (maybe automatically based on the style of the current house), and if both doors are placed in an interactable way, then when you interacted with door A, you would teleport to door B, and then the same with Doors C and D.
I think these two sets of doors should be fairly easy to get in-game (maybe just buying with gold), and then there could be additional sets from the Roland Hlaalu and on the crown store, which could be exotic types, such as Mages Guild Portals, Coldharbour Portals, Psijiic Portals, Evergloam portals, etc. (Maybe with some of them being rewards for in-game quests etc)
In addition to this, there could be regular doors as regular furnishing items which open/close when you interact with them. I would love to see the huge Coldharbour gates as one of these items!
PS4 - EU
Please put the Eyevea/EarthForge wayshrines back on the map?