Why would you have her "die like a random schmuck"? I mean, what?
Why not have her die heroically, but die nonetheless. I mean Jesus Christ, just look at Jesus Christ! He "died for our sins", can't Eilistraee die for the sins of the Drow, as it were? Sure, Lolololololth won and Eilistraee (and her perv-baiting naked dancing) were cast down, but now there's small group of Drow, spread throughout Drow society, who believe SHE did this for them, that Eilistraee (Blessed her name) proved, once and for all, that Drow do not have to be evil. There heretics don't have power, and their goddess is dead, but they remain, and maybe through their belief in things not having to be this way, they will gradually change things. Though not until a whole lot of them have been fed to the neo-Otyughs.
Howzat?
Sure, you could have your yawn-inducing "Good god vs. Evil god" super-cliche "struggle for the soul of the Drow" idiocy, but I think I prefer my Christianity-rip-off take on things, and I think it'd be less of a horrible cliche and involve more chance for actual complex adventuring and cool scenarios". Certainly I think I've "clued you in", as requested, on how she could be more fun dead than active.