RED micro-site now out!

Forgive me for merely skimming the thread but do we know
what the actual requirements to upgrade these weapons is?

If it doesn't require insane amounts of funding to get the required items/quests
obtained/completed it would be very advantageous to get an empress weapon to upgrade.

I'm pretty sure it was mentioned that they drop from the bosses. both of which don't look too difficult judging from the trailer.

I wouldn't be surprised if they were a NX sink though like most items level 150+