maybe I'm the odd one out, but I feel like they could do promotional events for SH3,
without always having Yu Suzuki be present.
I feel like he deserve some rest and promoting the game without him present would avoid
the implication "Shenmue = Yu Suzuki".
I would be glad if they do something like :
"For this event, Yu is not here, but here are some programmers from the team."
With the implication that, yes, SH3 is brought to us by many dedicated peoples.
That said, they could have a small teaser at E3, without Yu being around.
(A special video message from him should be enough for fans to be happy.)
...
Better : Have Yu comment select footage from the game as the teaser.