My advisor from Todai wrote to me two hours ago, saying that they've already been informed my ticket has been bought and I'm supposed to arrive in Narita on the 4th of April (last time I heard from the Embassy was when they gave me preliminary info on the ticket reservation before the earthquake), but he understands that I must be worried about the whole situation and asked how it influences my feelings about the scholarship.
I wrote saying I'm glad he's fine (It's me who should have written to him in the first place...), that I'm monitoring the news and it's seems life in Tokyo is coming back to normal and the situation in Fukushima should stabilize until April, so I intend to arrive as planned.
He didn't say anything about a delay, no news about it from the Embassy either.