Trading Kenins genuinely doesn't make sense. He had a great back half of last season, had horrible injury luck to start this season in the AHL, but has been really good as of late. His value is as low as ever, and he's projecting to be a decent 3rd line checker who can score now and then. He seems like the perfect guy to replace Prust next season.
I can see trading him as part of a package to upgrade at another position, but you're never going to get anything of value for him in a 1-for-1 trade, and a draft pick is unlike to show as much upside.