While playing this Dream, several scripts hint to Old Dream or New Dream. As we understood at the end of the Dream, the first time visiting Metropolis and playing this dream, it is a New Dream. So do not read on or skip parts which refer to Old Dream.
The final script states
***SPOILER***
"If you have finished the New/Old Dream". I think this should be "If you are playing the New/Old Dream"
***SPOILER***
I was a bit confused when I got to that point. Thorough examination of the gate card eventually led me to an answer, but a sentence about what's a new and old dream just before starting this dream would be welcome.
> New Dream / old Dream - it results from the Dreamgate tile you used when entering this Dream.
At the top of Dreamgate tile there is an appropriate entry:
GATE TO A NEW DREAM
(such Dreamgate tiles have red titles)
or
GATE TO AN OLD DREAM
(such Dreamgate tiles have green titles)
As for the script - yes, it's about the one we just finished and we're examining the final script for it.
But you're right, we're considering this script, so we're actually continuing to play it in a way!
Thanks for your questions!