After receiving a considerable amount of flak regarding their invite system for The International, Valve announced earlier today that the fifth iteration of The International will run from August 3rd to August 9th this year. Besides that, Valve also announced that the invitation for the qualifier and the direct seed will be announced shortly after May 1st.
This is different from the conventional invites that were sent out during March in previous years. The late invitation means a tighter schedule for the qualifiers but also means that the top teams of the current period will be invited for the tournament. No random outlier this time.
Source: Dota 2