On the question whether the gig is on the 17th or the 22nd…. The official website has changed the date on the tour page to the 17th now, and the ticket websites are mentioning the 17th as well. The venue site doesn’t mention the gig yet. So I think it’s safe to say that the gig will indeed take place on the 17th.
In other appearances news: the festivals appearances at Beautiful Days and Electric Picnic have now been confirmed on the official website, as well as a playful “watch this space”, so apparently there is more to come.
All I can say is: “watch this space”.