Honestly, there are far to many to even list. I think part of the issue may just be that not every application is an 'app' - computing is increasingly intertwined with physical applications. Here are a few consumer-focused 'emerging tech' applications off the top of my head:
Graphics / CV: VR Gaming (Oculus, HTC Vive, etc), self-driving vehicles, computational photography (Lytro)
HCI: Leap, Kinect, VR Gaming again
Architecture / performance / networking / databases are tools, not applications in and of themselves - find a problem that demands extremely high performing systems, and there will be work done in those areas. Example: the PX 2 system for self-driving racecars that Nvidia announced a few days ago at GTC hits six of your bullets points by itself (architecture, performance, computer vision, networking, parallel systems, computational science).
Graphics / CV: VR Gaming (Oculus, HTC Vive, etc), self-driving vehicles, computational photography (Lytro)
HCI: Leap, Kinect, VR Gaming again
Architecture / performance / networking / databases are tools, not applications in and of themselves - find a problem that demands extremely high performing systems, and there will be work done in those areas. Example: the PX 2 system for self-driving racecars that Nvidia announced a few days ago at GTC hits six of your bullets points by itself (architecture, performance, computer vision, networking, parallel systems, computational science).