Wow, great! They'll have 13 coasters now, which is the most in Asia, I believe. This park ranks really high on my to-do list. I love the mixture of different coasters it has, from classic Schwarzkopfs and quirky Japanese rides to the more modern B&M and enormous Morgan hyper.
Got multiple tweets from Nagshima Spaland featuring the opening of Arashi. Friday crowds were light with standby line at 5 minutes. For weekends/holidays they added a Priority Ticket machine which costs Yen 500 (€4 / $4,30) each ticket