Hi Juan,
I am the VFX supervisor of this project, so there’s nobody else but me to coordinate with 😉
Anyhow, the guys from BMD directly said the same. The only work-around would be a keying matte from AE into Resolve and back.
I’m quite aware that grading previously to the VFXs is not the perfect way, but we’ve played around with different scenarios, and there is simply no other way than this. So we’ll shot, edit, key, export with alpha and matte, pre-grade, export back to AE, do the final VFX and afterwards the final grading.
Thanks again, and all the best,
Andreas
PIXELGALAXIE
Hamburg, Germany