I suspect there'll be a client or a cross poster. The Wordpress crossposter is good, it puts links back to your main post, personally I'd prefer to have the conversation in one place, which should be doable, even for polls, eventually.

One of the reasons I'm happy is that 'fey is heavily involved, and it was her I was working on for lj2wordpress, which was I think always a bit too much of a pipedream. Her list of wants is pretty close to being implemented, and it's a distributed model designed for multiple nodes, which is even better.