In the past the download versions were exclusive to HeR Interactive for a while after release, before they were available elsewhere. That may be their intention this time as well, although I don't know for sure. I am hoping there will be a disc/boxed retail version as well as a download.
It would appear that the game description has been rewritten as well:
Nancy Drew unexpectedly finds herself in Salem, Massachusetts investigating an arson on the Hathorne estate. The Hathorne House was originally constructed by Judge John Hathorne, inquisitor of the infamous Salem witch trials and the final home to 102-year-old Frances Tuttle, his last direct descendant. When Tuttle passed away, the estate became city property and while the mayor was seeking a manager to oversee the estate the home burst into flames. The ongoing investigation has turned up little evidence but concerned citizens have accused Mei Parry of arson and are pressuring the police to arrest the secretive teenager. As Nancy races to uncover the truth behind the arson, she discovers connections to the house’s past with the Salem trials and finds herself drawn into a struggle with supernatural events that she simply can’t explain. Nancy’s convictions are put to the test. Are the ghosts real? Has Salem’s dark history come to life, or is there someone else to blame? Time is short, and Nancy must find the answers before the clock strikes midnight.