First there is no need for any bridges that transport DS files into Poser with a little experience you can get most stuff right into poser with a few klick even high complex environments. at first DS also used the Poser script versions later they just changed them to duf but basically the script remains the same unless there encrypted, decrypting gives agan the same structure like a Cr2 File so basically there both the same .

they would not have to pay daz to import Daz files as it already is possible and Ds gives full support for any Poser file version including Runtime import from Poser they also do not have to pay a fee to Bondware . Finaly it is just that the most experienced Creators Coders jumped over to DS and Poser has not many left that could offer a simple tool to impost any Daz model , in theory Poser would support the rigging system all the way. Also it will be hard to find someone of the few experienced to write a tutorial how to including me as it would be quiet some work so that most people can understand how to setup an Import. but to do it there is all you need built in both programs Poser and DS in both directions.