What it could mean for Season 2: Possibly, Nina Locke and Detective Matuku could continue to look for Ellie Whedon, but it will likely become very clear to the Locke kids that Dodge is still at-large and tricked them into throwing Ellie Whedon into the Black Door.
With that information, they’ll likely have to find a way to get Ellie Whedon back while throwing Dodge back into the Black Door for real this time.
So, in effect, the Lockes threw Ellie Whedon’s body into the Black Door, not Dodge.
For a split second, it feels like the Lockes had successfully defeated Dodge, taken her body down to the Drowning Caves, and thrown it back into the Black Door.