Dawn/Dusk Tracks

[GentlemanFridge]

I bought the soundtrack a while back, and listened to it many times. But then, I realised the Dawn and Dusk tracks from Shipwrecked seem to be missing. I was wondering if this was intended, or if they would become available eventually. 

Then there's the Rog release trailer track, which was added to the playlist. The Shipwrecked release trailer had a soundtrack too, right? Why isn't that one in either?

 

And then there's my last question. Will DST have a sountrack DLC? I'm quite eager to splurge on that should it become available.