A thought on 'The Coming Storm'. . .
Not spoiling anything, but Rularuu/the Shadow Shard has nothing to do with the mirror arcs. You're close when it comes to the blueside arcs in that extradimensional shenanigans are involved (I'll say no more :X), but the redside arcs are pretty down-to-earth.
"You don't lose levels. You don't have equipment to wear out, repair, or lose, or that anyone can steal from you. About the only thing lighter than debt they could do is have an NPC walk by, point and laugh before you can go to the hospital or base." -Memphis_Bill
We will honor the past, and fight to the last, it will be a good way to die...
Yeah, redside has literal clones. Blueside has alternate dimensions, but Rularuu's dimension is more like the inside of his own mind than an alternate Earth.
http://www.fimfiction.net/story/36641/My-Little-Exalt
I was browsing through the Rularuu the Ravager article on the wiki, and I noticed something:
I'd hope Rularuu and the Shadow Shard get involved in this somehow. By far, the Shard is my favorite area in the entire game, and I'm always eager to see if the devs will find a use for it except for old filler missions and a few excruciatingly long TFs.