416218
If you read the fanfic by twotonedearly, Twilight likely concluded is what happened to her instead of dying.

416216
Really? I thought Twilight was dead for 7 years.

416111
It is actually more of her coming out of a 15-year coma.

369623
Actually, there is one story that revolves around twilight coming back from the dead. See Equestrianl civil war: An Alternate Universe from twotonedearly's account and you'll understand.

405155
Thanks. I'm planning on showing the actual assassination, so I figured it'd be important to mention that.

405154 Orichalcum I think

404949
Actually, I've decided to resort to cloning instead. Also, what was that metal that can kill Alicorns called again?

404948 I loved Arkham Knight, good luck

369623

Actually, I'm planning on doing something along those lines... Arkham Knight Joker style...

img01.deviantart.net/e4b7/i/2012/108/2/1/vinyl_scratch_recolor___dj_5parkle_by_namelesshero2222-d4wo1s7.png

vignette3.wikia.nocookie.net/sweettalk/images/6/6e/Princess_twilight_sparkle_vector_by_esipode-d4j53bb.png/revision/latest?cb=20120701201513

img13.deviantart.net/7a9b/i/2013/206/e/7/my_little_twilight_sparkle_by_shadowhedgiefan91-d5p70e1.png

So, no stories about bringing her back to life? As in, they decide to bring Twi back from the dead.