They will slow down at some point. They are trying to fix their issues with capacity and outdated non-nostalgia rides. Notice ET is not being touched. They are speeding things up for 2017 and 2018 because of Disney and to a smaller extent Sea World. Because Disney and Sea World are looking to step it up, Uni still wants to be doing more then them. But at some point Disney and Sea World will also fix their issues and slow down. When they all slow down it will probably be Universal adding one new ride a year to every 2 years. Sea World every 2 to 3 years, and Disney every year to 2 years. So key IPs won't be touched as quickly as Twister is being touched. Because they will be the cornerstone of their park moving forward. Rides like Fallon, they will be changed out much faster and those will be the types of rides that go when they need a new ride for a new IP.