I think a lot of businesses will drop what remaining options they have for some employees.
There's a requirement that all businesses start an IRS section 125 plan, enabling their employees to pay for insurance with pre-tax dollars. There's also a provision to address employers who currently have coverage and drop it in favor of the state plan. The open question is whether the penalty will be high enough that it'll make more financial sense to leave current benefits alone. If not, I think you're right.