Well, this has gone off the rails somewhat.
So uhhhh...
New DT album, right guys? You know, if the album does get released in September (say, the 24th), we could probably expect (if there's a similar pattern to D/T, with the announcement being up 15 weeks before the album's release and the single about 11 weeks) there to be a full announcement on about 11th of June and a single around the 9th of July. On the other hand, we may have a more prolonged promotion cycle to tide people over. Funnily enough, if James completes his vocal parts by the end of this month, that would mean that the recording process would be in about the same timeframe as Black Clouds and Silver Linings was (October to March) and yet there is probably going to be a 3 month difference in release month between DT15 and Black Clouds, so it'll be interesting to see how they cope with that. I'm also assuming that the mixing/mastering follows a similar length of time, though.