I just happened to be browsing by and caught this.
There is no official collaboration with INERA. That being said, our team is very fond of L2Shrine and its members. Emca is a very talented developer and, when it comes to our limitations, we will often consult with her to solve a particular problem or to gain some insight into various features. She has helped us more than we've helped her, at least that's where we currently stand in regards to our relationship. Our team owes her a great debt.
Whenever or whatever Jorn/Emca decide to launch as a project, we will support their work as she will have our infrastructure / financial support.
I hope this clears up any confusion.