As far as I know the talk in was added fairly recently, unless anyone else knows different I only learned about it about a week or so ago. For me, it's got to be linked to the takeover. Unless I've got it wrong and it was announced months ago, there's no way with all this going on that they'd announce a talk in and charge £15 a ticket if there was a good chance the takeover would still be rumbling on or, even worse, that he'd have to be sat there telling people that it had fallen through. The minute I saw it announced I became even more confident that the deal was done and that they were confident the last bits to iron out would be done before the event, and then when Donald said 1-2 weeks it tied in even more. Not sure if it will be the announcement, or just a talk in (with Netflix etc there) following the announcement, but I'm certain it'll happen either then or before
Yes, it's quite a recent announcement. It will have been well thought through. These things are, despite what people may think.

