A consern about space efficieny since stormblood is not getting enough space increase

[Shougun]

2) Wardrobe, Personal housing, and other "bank" type storage - Other games typically have a bank, the retainer serves this purpose in FFXIV in a much better way (especially after the mess it was in V1.0) however it also has the same problem the player inventory has.

I would not want retainers to function as my wardrobe/glamour/item log. Unless you meant some other sort of system. Transmog Wardorbe/etc similar systems would be more preferable, better organized, easier to use than a retainer, I do not want to see the armoire become the glamour log either as the interface would be really ugly and clunky (similar reason why opposed to retainers, it would be a worse system).

Decor/crafting bags or w.e in the retainer wouldn't mind as much, although I would like to be able to more quickly access both retainers. Perhaps one pane with a tab at the top for the retainers, and they can have a loading circle like they do for the FC banks on pages - having to do four menus to check a different retainer isn't that great lol (although I understand if I had to wait a sec for loading between tabs).