While a lot of folks believe AMD is going to launch its Fiji-based flagships on June 16th it's still unclear if this is really going to be the case.
FUD Zilla claims AMD is going for a soft launch that will spread out over several days: the firm will likely show the card at its June 16th gaming event but wait until June 18th to reveal more details about it. For the first reviews you'll have to wait even longer, the NDA date is said to be June 25th, and we have no idea when they'll hit retail shelves.
Performance wise, with the latest drivers that AMD wanted to share with its few knowledgeable ones, it will win some and lose some benchmarks against the 980 TI. This is why the company is still very secretive about the final clocks and performance details.
We will see the card debut on June 16th at an AMD gaming event, but most of the information will come on the 18th. We expect to see first reviews before June 25th as people usually need a few days to test these cards.