Guilds are reserved for games with large scale events, player generated economy / player trading, crafting, group objectives and things like that.
If implemented, they would actually make the game look bad, underlining its limitations and lack of content even more.
Would I like to see corporations and many of the options that EVE has, in ED? You bet your a** I would.
Give them tags and chat channels...
Theyll want their own individual faction status.
Only really need groups, group chat, maybe group decale, and maybe the ability to align your group with a minor/major faction if you ask me, that is all elite would need and I think it would fit just fine