Will the terms and conditions of the ACS AuthorChoice license change with the expanded options?

No. The terms of ACS AuthorChoice will not change. The only new difference is a new option (ACS AuthorChoice+12) providing for open access availability at 12 months after first publication. ACS is offering that as a lower cost option for authors who wish or need to sponsor open access of the final published article with a 12-month embargo on open access and who want to benefit from other services or licensing options associated with the ACS AuthorChoice program.