I wouldn't be too concerned. They've got the core team back and although we haven't seen much yet, what we have seen/heard is inline with what's to be expected at the time of production.
From what I can gather, they've built the functionality needed in the game already using Unreal's blueprint systems and they're now going through the story events etc programming while working on the animations and models.
In case people don't know, the unreal's blueprint system is a real thing of beauty. They're basically scripts that you can use over and over again for multiple uses. For example, in Shenmue, by holding a trigger down you go into first person mode and can sort of "target" items, right? Well, you can make a blueprint for that fairly easy. All you'll have to do is tell the blueprint to this: when right trigger is down, go into first person mode and lock on to any objects with something called "target".
Then all the programmers have to do is create these items/objects and stick a bit of code called "target" in it.
They'll be a blueprint for Ryo walking, jumping, QTE's, talking, actions, QTE's and most things I suspect. It's still a lot of work to do, but it does decrease the time and workload an awful lot compared to the old way.