Ok, so not sure if this has ever been suggested but I'm going to put it out there nevertheless.
My idea is to incorporate more customizations into DDO but some that would allow the players to do the customization and will make Turbine some money in the process. No, this does not require a full platoon of artists.
How about something like prefix and suffix titles on your character? Before you throw this idea down, hear out how I see this being implemented and it might change your mind. Instead of having cookie cutter names 'Sir', 'Lord', 'King', etc, allow the players to self title. Keep it to a reasonable number of letters (10 or so maybe) and only allow a prefix OR a suffix, to not allow names to get too long.
Additionally, you could incorporate it into the guilds. You could allow a guildleader to give customized ranks to their members. These would be displayed to allow others to identify a rank of a guild member. It would be nice to know if that jerk you just got done grouping with was the guild leader of a guild or just a new member, so you could get an idea of what kind of people that guild wants in it.
The money aspect, you could give a guild 3 customizable ranks, but for a modest fee, say 250 points, you could add another. Heck you could even split them into prefix or suffix titles and charge for each type.
The aspect I want included into DDO is customizable titles to give our characters something to set each other apart. That is the biggest issue I see. This gives us a bit more of the feel of D&D while still making it easy for the dev team to code something (reasonably I would assume) and not have to hire 10 artists.