So far, Scarlet Dawn is on the top of my list. Don't get me wrong the cubical cabinet looks absolutely sick but I think the practical thing is if UK has any of these machines they're just too far away for me to play.
If it's Scarlet Dawn, then there is still hope then even if it will take "forever".
Since SEGA weren't interested anymore in making home version of THotD themself, at least Forever Entertainment could fill the gap.
They're finished with remake of the first and developing the second one.
After that may be they could move into remaking III, IV, and then finally Scarlet Dawn.