All tasks listed below are required to fully implement the KEP-5229 for incoming release:

• KEP-5229: Create SchedulerAsyncAPICalls feature flag #132486 (@macsko)
• KEP-5229: Implement async API Queue #132489 (@macsko)
• KEP-5229: Migrate binding API call to the async API Queue #132490
• KEP-5229: Migrate preemption API call to the async API Queue #132491
• KEP-5229: Migrate status update API call to the async API Queue #132492
• KEP-5229: Allow for customization of API Queue by out-of-tree plugins #132493
• KEP-5229: Implement metrics listed in the KEP #132494
• KEP-5229: Run Unschedulable scheduler_perf test case with SchedulerAsyncAPICalls feature gate enabled #132495
• KEP-5229: Add scheduler_perf benchmarks covering async API calls #132496

/kind feature
/assign
I'll start with the first two tasks that are blockers for the rest.