Okay, so what I can tell you guys is that a complete package deal (flight+hotel+Fan Meeting+Ekiden music festival entry+YELLOW live ticket) will definitely be offered to those of us in the US! Details, price, etc. are all TBA, so please don't ask me exactly when this will be available. You'll know when I know.
What I can't yet confirm is an event-only package like two years ago where only the events in Hawaii (Fan Meeting+Ekiden music festival+YELLOW live) are included. It's pretty much a done deal, but they still have yet to confirm everything. Again, I'll let everyone know when I get more details and confirmation.
So, while I can't say for sure if you guys do need to buy Ekiden music festival tickets when they go on sale tomorrow or not, I would highly suggest refraining from doing so. Unless you'd be okay with most likely paying for double tickets.