I hope they don't do what many other bands have done lately - release 3 singles before the album, which leaves only 4-5 songs left "unheard".
Seems the norm.
Lead single + video.
Then the by now mandatory lyric video.
Then a third song one week before just to remind everyone's short attention span that the album is coming.
In the social media era you have to keep up the attention, of course the dedicated fans need to be told only once and they learn by memory the release date, but you have to chase the casual ones as well.
Yep, this is the norm nowadays, but what if...
... the album is some sort of BC&SL 2 where there's very few tracks but they're mostly long ones. We already know that "the songs are lengthy" (according to MM), which could mean anything really, but I think it's safe to say they'll be longer than what we've seen in the last 2-3 albums.
To continue with the Black Clouds analogy, if they only have 2 "short" songs and then 4-5 long songs, they can't release as many singles unless they release a heavily edited version of one of the epics.
Going again by comments made by MM, I don't have the exact cuote right now but he said that there's one song that's more mellow (probably the only ballad) and that the rest of the songs are "frantic".
My bet is that, if the album still gets released in September, we get one single in August and one in Sept.