I'd suspect that the next target will be weight or possibly cholesterol levels.
Glucose will probably follow shortly after that. According to my doctor, the "normal" limit for the fasting glucose test has recently been reduced to 100 from the previous (I believe) 105. That change will certainly create an epidemic of "new" diabetics.
Employers will force their employees to have cholesterol tests and BMI tests. Any applicant whose cholesterol tests and/or BMI tests are over the acceptable levels will be disqualified, and current employees whose cholesterol tests and/or BMI tests are over the acceptable levels will be automatically fired.
Employees who get one single traffic ticket (including seat belt violations) during their course of employment will be automatically fired.
Employees who watch Fox News Channel will be automatically fired.
It will get worse...and it will never get any better. Little by little we are losing our rights, and pretty soon we will have NO rights whatsoever. Once those rights are lost, they will be lost forever.