They have to make clear that Shenmue 3 will never be Released for PS4 in Physical form later im Stores( I know, not really known so far).. and at the same Time have to make a new Reward for a physical PS4 copy only available over this Kickstarter... I think that could make a big push for this KS!
...and make that Dragon/Phönix Mirror Replicas I guess that would help also.