BVHacker is amazing little tool id recommend anyone to keep on hand.
What format does Deepmotion give you?  in most cases you can import into Blender (free) and export a bvh file.
But the tricky part is bone naming.  Poser will discard bones that are not use.  For the many years ive used Poser the naming convention has pretty much stayed the same so it usually works on anything.  I haven't tried so much with newer figures myself, but i am under the impression there may be some changes to that?  (don't quote me though I have to look myself still).  But there is no reason you can't stick to the widely use naming conversion. 

I think i looked into it a little before (the results looked lika terd) but I'd still be curious to try and see how it goes.

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My most recent Poser animation:
Previs Dummies 2