Yep.
Shimokawa-san works also now as director at Japan Studio 4:11
If Bluepoint Games was going to remake The Legend of Dragoon as long-term project like FFVII he would be the right person to re-write the story for The Legend of Dragoon.
Still,
he is only a director which is below creative director (they lead projects at Japan Studio).
Just so you know... Shimokawa is a game director, not just a director. As there is no such things as a simple director. Also...
It is not exactly that (regarding the directors positions in a AAA game studio). All directors in a studio are more or less on the same level when it comes to decision making. You have all kind of directors usually on bit AAA games:
Creative Director (directs the narrative experience and context in which the player will encounter puzzles or enemies. In general, that person is in charge of the experience the player has with the game. Often works in tandem with GD and AD.)
Game Director (directs all the gameplay moments, from the mechanics to the levels design)
Animation Director (pretty obvious, also works with AD for coherence with the art direction. Works with GD when it comes to animating game mechanics)
Technical Director (directs the elements that may affect the performance or visuals of the game. Usually work with AD and GD to balance said things out)
Art Director (direct all artistic visual elements of the game, from the character design to the Visual effects)
And so on...
It's their collaboration that ensure the cohesiveness and quality across the whole project.