Random thought here, but there's been some speculation that the new private owner of the Borley Rectory site might be open to paranormal investigation teams getting access. I don't know how true that is, but if it happened, what would be the dream investigation strategy? Most historical teams couldn't do what they wanted because the site was private or heavily restricted.
The rectory itself is gone, obviously, but the land is supposedly where most of the phenomena occurred. Imagine being able to do a proper multi-night investigation with decent equipment and full site access. What would you actually want to investigate? Ground-penetrating radar? Overnight vigils at specific locations? Archaeological work to look for any physical evidence of the paranormal claims?
I'm probably getting ahead of myself and the owner will just turn it into a holiday let or something equally mundane. But it's fun to think about what could be possible.