(chore)roadmap: update the litmus roadmap (#4953)

Signed-off-by: ksatchit <karthik.s@harness.io>

ROADMAP.md

@@ -11,47 +11,62 @@ This document captures only the high level roadmap items. For the detailed backl
 -   Per-experiment minimal RBAC permissions definition
 -   Creation of 'scenarios' involving multiple faults via Argo-based Chaos Workflows (with examples for microservices apps like podtato-head and sock-shop)
 -   Cross-Cloud Control Plane (Litmus Portal) to perform chaos against remote clusters
--   Helm3 charts for LitmusChaos (control plane and experiments) 
+-   Helm charts for LitmusChaos control plane  
+-   Helm Chart for LitmusChaos execution Plane
 -   Support for admin mode (centralized chaos management) as well as namespaced mode (multi-tenant clusters)
 -   Continuous chaos via flexible schedules, with support to halt/resume or (manual/conditional) abort experiments
+-   Provide complete workflow termination/abort capability 
 -   Generation of observability data via Prometheus metrics and Kubernetes chaos events for experiments
 -   Steady-State hypothesis validation before, during and after chaos injection via different probe types
 -   Support for Docker, Containerd & CRI-O runtime
 -   Support for scheduling policies (nodeSelector, tolerations) and resource definitions for chaos pods
+-   ChaosHub refactor for 2.x user flow 
 -   Support for ARM64 nodes
+-   Minimized role permissions for Chaos Service Accounts
 -   Scaffolding scripts (SDK) to help bootstrap a new chaos experiment in Go, Python, Ansible
 -   Support orchestration of non-native chaos libraries via the BYOC (Bring-Your-Own-Chaos) model
 -   Support for OpenShift platform 
+-   Workflow YAML linter addition
 -   Integration tests & e2e framework creation for control plane components and chaos experiments
 -   Documentation (usage guide for chaos operator, resources & developer guide for new experiment creation)
+-   Improved documentation and tutorials for Litmus Portal based execution flow 
 -   Add architecture details & design resources 
 -   Define community sync up cadence and structure  
 
 ------
 
-### In-Progress (Under Active Development) 
+### In-Progress (Under Design OR Active Development) 
 
--   Support for all ChaosEngine schema elements within workflow wizard 
--   Workflow YAML linter addition
--   Minimized role permissions for Chaos Service Accounts
+- Native Chaos Workflows with redesigned subscriber to improve resource delegation, enabling seamless and efficient execution of chaos workflows within Kubernetes clusters.
+- Introduce transient runners to improve resource efficiency during chaos experiments by dynamically creating and cleaning up chaos runner instances.
+- Implement Kubernetes connectors to enable streamlined integration with Kubernetes clusters, providing simplified authentication and configuration management.
+- Integrate with tools like K8sGPT to generate insightful reports that identify potential weaknesses in your Kubernetes environment before executing chaos experiments.
+- Add Terraform support for defining and executing chaos experiments on infrastructure components, enabling infrastructure-as-code-based chaos engineering.
+- Add SDK support for Python and Java, with potential extensions to other programming languages based on community interest.
+- Include in-product documentation, such as tooltips, to improve user experience and ease of adoption.
+- Implement the litmus-java-sdk with a targeted v1.0.0 release by Q1.
+- Integrate distributed tracing by adding attributes or events to spans, and create an OpenTelemetry demo showcasing chaos engineering observability.
+- Enhance the exporter to function as an OpenTelemetry collector, providing compatibility with existing observability pipelines.
+- Add support for DocumentDB by replacing certain MongoDB operations, improving flexibility for database chaos.
+- Upgrade Kubernetes SDK from version 1.21 to 1.26 to stay aligned with the latest Kubernetes features and enhancements.
+- Refactor the chaos charts to:
+  - Replace latest tags with specific, versioned image tags.
+  - Consolidate multiple images into a single optimized image.
+- Update GraphQL and authentication API documentation for improved clarity and user guidance.
+- Add comprehensive unit and fuzz tests to enhance code reliability and robustness.
+- Implement out-of-the-box Slack integration for better collaboration and monitoring during chaos experiments.
+
+------
+
+### Backlog 
+
+-   Validation support for all ChaosEngine schema elements within workflow wizard 
 -   Chaos-center users account to chaosService account map
--   Provide complete workflow termination/abort capability 
 -   Cross-hub experiment support within a Chaos Workflow 
--   Helm Chart for Chaos Execution Plane
 -   Enhanced CRD schema for ChaosEngine to support advanced CommandProbe configuration
 -   Support for S3 artifact sink (helps performance/benchmark runs)
--   ChaosHub refactor for 2.x user flow 
 -   Chaos experiments against virtual machines and cloud infrastructure (AWS, GCP, Azure, VMWare, Baremetal)
--   Improved documentation and tutorials for Litmus Portal based execution flow 
 -   Off the shelf chaos-integrated monitoring dashboards for application chaos categories 
 -   Support for user defined chaos experiment result definition 
 -   Increased fault injection types (IOChaos, HTTPChaos, JVMChaos) 
 -   Special Interest Groups (SIGs) around specific areas in the project to take the roadmap forward
-
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-
-### Backlog 
-
--   Pre-defined chaos workflows to inject chaos during application benchmark runs 
--   Support for cloudevents compliant chaos events
--   Improved application Chaos Suites for various CNCF projects