Account bound peices (like three pieces make a hat or something) that would form weapons/armor over time with legendary like lore attached to them.
I mean... as long as such equipment wasn't so godly or anything.
Like little low-level sets that looked neat when completed that don't give such edge but more of a visual aesthetic.
And, as mentioned, concept art books or something with some lore.
Again - as long as such equipment was account bound and not SO powerful.
As a hardcore player I would love to have the option of doning a neat little lowbie suit just for the sake of looking cool if my high level bit the dust.
That would be boss.