Here is a list of the new stock application/settings GUIDS that I have found so far:
I am sure there are more and there are ones with sub pages as well. I can't verify the sub pages until I find a way to launch an application from within a native app. If someone provides me a new way to execute native apps I will update My Supreme Shortcuts app for WP8 http://forum.xda-developers.com/showthread.php?t=1343993 .
Code:
"5b04b775-356b-4aa0-aaf8-6491ffea562a": CompanyApps
"5b04b775-356b-4aa0-aaf8-6491ffea562c": SIMApplications
"5b04b775-356b-4aa0-aaf8-6491ffea562d": Family
"5b04b775-356b-4aa0-aaf8-6491ffea5647": BackupSettings
"5b04b775-356b-4aa0-aaf8-6491ffea5648": Backup
"5b04b775-356b-4aa0-aaf8-6491ffea5670": Feedback
"5b04b775-356b-4aa0-aaf8-6491ffea5682": BingVision
"5b04b775-356b-4aa0-aaf8-6491ffea5683": Wallet
"5b04b775-356b-4aa0-aaf8-6491ffea5801": EaseOfAccess
"5b04b775-356b-4aa0-aaf8-6491ffea5802": KidsCorner
"5b04b775-356b-4aa0-aaf8-6491ffea5803": KidsCornerSettings
"B0894DFD-4671-4BB9-BC17-A8B39947FFB6": Sharing