I was jerking around with my entire shader collection to get a good ghost shader for hours...until I realised that the best ghost is done without any shader. Check out this image and see if you can see it creeping through the hallway.
Its not unlikely that this ends up being another hallway shooter. I really don't know.
We will all see once the full version is out there. I think this will be a 1.18 Release. So far I released something in every version since 1.14 (I think) so I don't see why skip 1.18.
You guys probably want to see some more screenshots, so here you go: