Time will tell, but I doubt it unless it has been designed as a submersible train.
The answer is in the article. Yes it will.
@Stark Ross - uhm! in the article they also say that the fleet is 36 and then later they say it is 93.
The entire fleet of 93 units is being delivered in two waves. The first wave is being built in the North East of England, the second wave is the 36 units having to be imported from Japan.
I was told last week by GWR that the first wave was built in Japan and the second wave is being built in Italy. As long as they are not of the same design as the original Virgin Voyager trains then the waves crashing over them should not be a problem. Time will tell...........