I would Say so, as Well, Fortunately I have seen that Recently new Tomb Raiser Costumes have been Added. I suppose Trion had a Few Problems Actually Finding Costumes to Fit the Theme of Death, as that appears to be what an average Necromancer, such as the Tomb Raiser, would stand for.

It doesn't really have to be fixed on the theme of death - for example, maybe a jewel clad tomb raiser! Doesn't really makes any sense (no connection) but it still looks cool. I guess?

Yeah, I see where you are going, but Trion would probably want a lot of death/chaos/darkness themes for Tomb Raisers as they are necromancers. I do like your idea of a costume though, and I think there are ways to make such an idea work while sticking to the average TR themes

For example, a Tomb Raiser in a Soul Gem Clad Robe, or Perhaps Shadow Shards. the robe fabric, of course, consisting of darker cool colors in the sense of mostly purples and blues with some blacks/whites for neutrals

Or maybe really simply as a skeleton exterior? Or go one more step and add horns and turn it red and purple-ish to make it as a demon skeleton necromancer?

Doesn't have to be only clothes!

Possibly, there might be bluprints for the body itself out there somewhere. Or, if there are none, one could make one of the hats/helms in the game mimic a purple-ish head with horns to give it the illusion of demon skin.

While the hands could be given a similar effect to match

As for the skeletal exterior, all you would need to do is the body itself, so that shouldn't be to complex, maybe increase simple effect with some tattered clothing to make it look like it is a skeletal zombie, much like its minions, just more complex, but a simple skeleton body is fine either way

but I find your idea of a skeletal raiser to be a great idea, especially since it would save time in the idea of designing clothes (As skeletons do not usually have them, anyways, why would they, they have nothing to cover!)

hmmm