The U.S. Department of Education stated that in addition to the new applications submitted, California, Illinois, Idaho and Iowa still have outstanding applications.
For the six states that have not requested a waiver (Montana, Nebraska, Pennsylvania, Texas, Vermont and Wyoming), ED has stated that it will work with all interested applicants on a rolling basis. In a surprise move, Texas announced recently that it intends to submit an application for a waiver, but wants the ability to apply for a Texas-designed waiver, similar to what California has requested. Texas has not applied for Race to the Top grants nor adopted Common Core State Standards. Virginia proved Common Core adoption was not required when they were granted a waiver earlier this year.
You can find more about the current waivers and recent submitted application here.