I emailed Elevation Labs asking if they were going to make an Elevation Dock compatible with the 6 plus, this is the response I got
So looks like there will be a good dock for the 6 plus coming!
The iPhone 6 fits in our current dock, the iPhone 6+ is a few mm too wide. We have a new dock in the works that will fit the iPhone 6 & 6+. We plan to announce release details when we know exactly via our newsletter. To be the first to know about our new product launches, sign up for our newsletter - http://eepurl.com/uu_Z5
Thanks,
Catherine
So looks like there will be a good dock for the 6 plus coming!