“New” and “unique” attractions are needed, yes. Technologically ambitious ride systems that excite techy designers but don’t improve the ride experience for guests is not the way to do this. Storytelling using proven tech in clever ways with occasional incremental changes is the way to do this. Trackless systems, autonomous driving, etc… they’re good ONLY to the extent they help the story. When the system takes precedence over narrative and operations - say, when your system requires big, open rooms with perfectly flat floors or breaks down constantly - you’ve made a huge mistake.