Based on the current market trends and customer needs, there are several options for transitioning from on-premises VMware to Oracle Cloud Infrastructure (OCI) without incurring additional costs. Here are some possible approaches:

1. Subscription Model: If you have a new contract with Oracle, you can opt for the subscription model, which offers more flexibility and cost savings compared to the previous per-socket pricing model. This option is suitable for customers who want to consume infrastructure resources on-demand.

2. OCVS: You can use OCVS (Oracle Cloud Virtualization Solution) to extend your existing on-premises VMware environment to the cloud. This approach allows you to retain your current hardware investments and extend the life of your existing hardware.

3. Native Cloud Services: Another option is to migrate your existing workloads to native cloud services such as Oracle Cloud Infrastructure Compute, Storage, and Database services. These services offer better performance, security, and cost savings compared to traditional VMware environments.

4. Root-enabled OCVS: With the root-enabled OCVS option, you can enjoy the benefits of OCVS while retaining full control over your hardware and infrastructure. This approach is suitable for customers who want to maintain their existing hardware investments and avoid vendor lock-in.

5. Cost Optimization: To optimize costs, you can consider consolidating your workloads, rightsizing your instances, and using cost-effective storage solutions such as Oracle Cloud Infrastructure Object Storage. Additionally, you can take advantage of free Oracle Cloud Manager (OCM) services to help you with the migration process.

In summary, there are several options for transitioning from on-premises VMware to OCI without incurring additional costs. These include the subscription model, OCVS, native cloud services, root-enabled OCVS, and cost optimization strategies. By evaluating these options and selecting the best fit for your organization, you can enjoy the benefits of OCI while minimizing costs and disruptions.