Well, Let us be logical. First off we need evidence. Where do we find this evidence? On the wiki pages.
And, keep in mind this is opinion and probably not true even though I have included evidence. An argument in writing still has opinion, seeing as there are two sides either way. As well as some of this data not adding up as there isn't enough pieces of the puzzle.
FIGHT START!
From my data, I can conclude that Mrs. Baver is a lesser demon due to her strikings having all failed. With this, most likely she would be possibly fading away.
"Some of the more optimistic of scholars claim the dark banshee is dead. This can neither be confirmed nor denied, but with the hunting of vampires becoming more and more chaotic and frequent, it seems only a matter of time before Sophie Baver attacks again." --Sophie Baver's wiki page written by Jared4242 and Ryceria
This could mean one of two things, /unless/ seeing as she'd retreated and more of the vampires are being killed, her army is dwindling. So without enough power from the void to connect to her body, there wouldn't be enough to bring her back a second time. But what if.. "Void Shards, in short, are items possessed by demons that are used as bridges to possess their host." -- Void shard wiki page written by Green_Hood and ravenwolfthorn. It states this within the Sophie Baver lore page, "Sophie, was beloved by many as a kind soul. She was a petite woman, frail but radiating a simple kindness that made her easily likable. However, tragedy struck only a year after their marriage." --Sophie Baver wiki page. How did this tragedy occur? What inflicted this upon Sophie? The conclusion I have is that she came upon a rare Void Shard and became terribly ill, as stated as well within the page. "not offering any care for age, race, or political position. They instantly jump from the shard to those wielding the shard and take permanent possession, causing the physical manifestations to rapidly appear upon the host as per all tier one possessions. The physical form of a tier one shard is static, appearing as some sort of everyday object that wouldn't cause questions." There were no questions asked if she wore any jewelry or such, nothing. So, wait, it also says that it causes physical manifestations to /rapidly appear/. With this information couldn't her illness that /rapidly appeared/ be a void shard? An a disease needs time to develop. So the time she was buried was the initial process to the disease. So if the void shard possessed Sophie Baver, and she wasn't doing a good enough job to whatever the purpose was being. Then wouldn't it give up on her? So in conclusion to my opinion, I believe,
Sophie Baver is not coming back.
As for Freya, I believe the body was burned and shards cannot manipulate ashes. Neither has she come into contact with a void shard, seeing as there weren't any factual evidence upon what went on behind her death or before it.
(I think.)