I guess there must be some CT200s and Auris hybrids over 100k miles but they aren't that old so number are limited. Still there are generation 3 Prius' out there with over 100k miles which share the same drivetrain - they are all fine, just standard servicing parts needed plus the odd oxygen sensor etc.
There is no reason to suggest there won't be essentials servicing offered for the CT, but by definition the vehicle has to be over 5 years old to qualify and even the oldest CTs are early 2011 registrations, hence no mention as yet on the Lexus website.