Both. Sorta.
The adventures that comprise Sprawl Wilds were originally written prior to Season 4, and several (notably Ashes and Copycat Killer) were "previews" for Season 4.
The adventures were bundled up and released in print AFTER Season 4 was completed though, and at that time the decision was made to tweak the adventures slightly so that they fit the timeline a little bit better. Ashes is very similar, but slightly different and has references to an earlier fire, for example, and Carbon Copy has a nearly identical story structure, but is actually a good deal different with a different antagonist and different targets for the killer since Copycat Killer had been released already bundled with SRM 04-05: On a Silver Platter.
Humanitarian Aid translated pretty normally and wasn't really tweaked much, so it could be run straight, and should be run sometime before SRM 04-10: Romero & Juliette.
My suggested running order would be:
Ashes (Just remove any references to an earlier fire/prop 23. Alternatively, run it straight and move this to after SRM 04-12).
Copycat Killer
SRM 04-00 - SRM 04-03
Humanitarian Aid
SRM 04-04 - SRM 04-12
Carbon Copy
And Manhunt can be run anywhere in the middle there as a filler adventure.