Guild Wars 2

I have two questions about guild decorations at this moment and some decorations ideas that i would like input on.

My first question is that i and my guild would like decorations to have a preview option like we have for armor, is this in the works and if not can it be doable?

My second question is about the size of decorations and how big can they be since it seem like most of the stuff we have is relatively small and by the end of customizing one hall there be allot of blank vanilla space?

Here some ideas i have for hall decoration that i have.
+Watch tower theme after Itzel tree house
+NPC that you can hire via pve or wvw content that walk around the guild hall and have fun but short conversation with other npc and you
+ NPCs that do cool stuff (for example do a quest to hire Kailani the Foolhardy to give her work space in your guildhall to build a mark 2 drop troop or scout helicopter) She will have a little platform and workshop to build and work on her helicopter on