Cloud9 will be one of the teams attending the CS_Summit in April. This is just one of the first few teams to be invited to the summit. While further announcements are awaited, this has definitely paved way for the tournament to be consisting of top tier NA teams.
— Beyond the Summit (@BeyondTheSummit) February 14, 2017
They will join Team SK in the invitees list. We will wait for more invites to be handed out before coming out with a full list of attendees.