Hanshin's new 5700 series has begun daytime test runs. These are the company's first new trains in 20 years, and they follow the 5500 series in having 4.0km/h/s acceleration, see Bikkuri's thread on the topic here: http://www.jnsforum.com/community/topic/6124-hanshin-jet-cars-speedometer-shots/ . This set will enter service in summer, and subsequent formations will replace the 13 existing 5001 series trains. It probably is about time for a fleet refresh, but the 5000s still look great in their dark blue and creme livery.
http://railf.jp/news/2015/06/26/200000.html
http://railf.jp/news/2015/06/09/153000.html
Kobe Shimbun video with interior and undercarriage views
video by SANTENDOGA, available in 4K resolution if you've got the gear :)