What is the status on the replacement for the ElastiCache Serverless Valkey Cost Estimator?

Per https://github.com/aws-samples/amazon-elasticache-samples/tree/main/tools/serverless-cost-calculator there is an Excel spreadsheet in the works to replace the previous code-based estimator. What is the status on this?

Thanks.

Review the tools/serverless-cost-calculator directory and the referenced Excel spreadsheet to determine whether the replacement estimator has a documented status or implementation plan. Confirm the current state with maintainers; done would require a clearly identified next step for the replacement, but this issue does not define implementation scope or tests.

Written by the indexing model from the issue text.