You may end up trading them to somebody who DOES have a use for them here, for something you need, perhaps elsewhere. I'm going to need a bunch of STEEM to finish up my [MAP] project soon, and maybe I'll be sourcing some of it from private holders. Kinda depends how things go in the next couple days. In short, I don't really know what's going on, but I think you'll likely find somebody who wants them at some point. (Or another exchange will become available to do it?)