Will there be Alembic file support?

It would be handy, especially for complex effects and simulations if we could import “geomcache” data from Maya for example, to be played back in editor.

Yes The_Distller, same question I ask in week ago How do I load my custom model Rig and animation in Unreal Engine - Character & Animation - Unreal Engine Forums - we need alembic so badly!!!))) for next move

This is on our UE4 Roadmap. From the looks of it, it is in the process, but I cannot confirm when/if this will be implemented.