Rokuhan has released their latest passenger train, type 25 JR East Elm, in blue in 3 versions 7 car basic set, 5 car set and a 2 car add on, the book case sleeve in the 7 and 5 car sets will hold 8 cars each. This sleeper train routinely runs to 17 or 18 cars in length from the videos I have seen on line.
They are also accepting reservations for their 103 series commuter sets from from distributors in either blue or yellow livery, this last announcement is on Japanese language web site only at this point.
regards Garth