“Are there any new technical capabilities in hardware and/or software opening up new creative options for content playback, design, or interactivity? How are they being applied? How well are they being applied?”
Some of the interesting executions I have seen recently are where the lines of signage and the environment are blurred. This is by way of new and more flexible or shape-shifting display solutions, or by eliminating the look of a screen all together with projection or transparent executions. By eliminating that line, it can help bring a larger sense of impact and make the viewer feel closer and more engaged with the display. From an interactivity perspective, I like what I have started to see with gamification and engagement from a personal device or app on to a display. This could be AR or merely a shared experience amongst multiple viewers.