Nah. It's a really small team. I figure it'll be holiday 2016. By that time, they should have an idea what Harmonix is up to and be able to respond accordingly. And they'll have over 1000 DLC songs, which will be pretty stout.
I'm hoping there's a 2016 game later this year. Would love to breathe some fresh air into the franchise besides the weekly DLC. I think you're probably right though, they have no reason or motivation to rush anything out this year. I guess we're all just looking forward to RB and possibly GH for now.