Workflow for VFX: Use Case: Editor->CC->VFX:

1. Edit in Premiere/Final Cut(yuk)/whatever
2. Export Clips with VFX to transport format (like dnxhd)
3. Reimport this clips to Timeline
4. a) Send Clips to VFX
5. b) Send Timeline (e.g. Final Cut XML) to CC
6. To CC, when VFX done, just import/replace them in CC Suite (e.g. Edit in Resolve)