We're so excited to finally be able to announce the reason for our radio silence! We've just started to release a brand-new webcomic that tells the story behind the story-- the tale of the first Guardians! You can find it at the links below!
We will still be working on Raiden's Quest, but due to the massive amount of work that it takes to produce an animated series, we can't give an estimated release date just yet. However, we hope that Guardians' Advent will help pass the time until then :)