1. Communities or Solo instances?, do you want to see groups of players houses in the one instance or a private instance with only your house in it? (people can still visit either way.)
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2. Construction, what level of involvement would you like? building it block by block? A room by room function where you can pick and choose rooms to add? A series of set designs?
I love games like Minecraft and Terraria’s control over what you can do and the sheer RIDICULOUS amount of effort people can put into doing things terribly unique with construction. I’d rather they stick to those games than Guild Wars 2. I’m sorry, don’t get me wrong, those of you who do things like rebuild Minas Tirith or make soaring citadels of glass and stone which look like they took hours – I salute you. But trying to satisfy you with that level of control is going to drive the developers MAD. MAD I SAY.
What I’d expect is a modular approach. You can choose a floorplan/blueprint from a few predeveloped shells with “X large rooms, Y small rooms, and Z floors”. Then you can pick and choose from a list of “large rooms”, “small rooms” to fill it in. Things like a trophy hall, a crafting workshop, or something just decorative . . . like your asura has a golem foundry, my human has a chapel to Grenth, his charr can have a room where he works on his charrzooka or mortar system. But almost all of the basic rooms come unfurnished.
Then you can use artisans or interior decorator NPCs to create from a menu using some materials (not huge amounts though) to craft furniture or decorations which get placed like siege blueprints – you get a bundle item and a red outline turning green where you can place it. Standing close you can target it for context specific things . . . like sitting on the couch or posing before a trophy on the wall.
3.Functionalities, I think we can all agree at a basic level housing should allow for some storage and display of trophies/achievements/weapons/armor , in addition to this what would you like to see, Farming? nodes? intractable objects? side missions?
Trophy showing off? Yes definitely.
Nodes? Ehh, yes, might be nice. Link it to what your home instance currently has available and you can either use your house or your home instance. And based on level you can have access to crafting materials of varying tiers (but not Tier 6 without actually doing something to earn them) such as a rich ore node or a few trees, or a garden you can choose what to plant for availability tomorrow. Like you will get sometimes a seed from gathering which lets you spawn a patch of that gathering node for plants in a garden.
The last probably is a bit much and prone to causing shakeups in the economy for food. Oh well?
4. Interior customization, placing objects within the house how would you like it to work?
I covered it above.
5. Getting items, How do you get items to put in your house?
Decorations either through your interior decorator crafting them, achievements from Living Story or retroactive, potential rewards from champion bags, or from chests out in the world. Say, chests in Orr have a chance to give humans an icon of one of the Six Gods looted from the Holy City of Arah . . . or charr a piece of Pact weaponry to hang on the wall as memory to those who were lost . . . or sylvari getting a sprout traced back to Caladbolg’s influence on Orr?
In other words, decorations either basic and available to everyone or things which require you to go adventure and get them.
6. Linking to other content, is there anything you would like to link with housing? (i.e in a perfect vision of the future I could walk out of my house onto an airship dock and take my airship into combat)
Much like with Guild Halls, you can buy servants/assistants who would do things like . . . an Arena Master who would let you go to Heart of the Mists, a Mist War Veteran who could drop you to WvW, an Asuran Travel Facilitator who could send you to any Asura Gate destination in a major city. Or for a FLAT FEE (say, 2s 50c) drop you at any Waypoint not contested you have discovered. (Big enough an expense it’s possibly cheaper to move to a city close then travel, small enough that it’s preferable to reach some long-distance locations like Orr).