Bag Space – I already have max of 170 slots but always in need of more when I do dungeon runs.
Bank Space – Again I have the maximum spaces of 240 but when you are skill 50 in all crafting professions bank space is at a premium.
Mobile workshop – This is taken from wow you could have a mobile workshop to make things straight away for people in the middle of a raid who had forgotten to bring stuff along. This would only be temporary for say 10 or 15 minutes perhaps re-useable every 1 or 2 hours
Mobile Vendor – This is for people who never have enough bag space if we cannot have the top two suggestions then this would be a good alternative this again would only be temporary for a short space of time perhaps re-useable every 1 or 2 hours.