Keith Baker, the original designer of the Eberron campaign setting, has a great patreon-funded blog wherein he discusses his (unofficial) approach to Eberron in 5e. There isn't much rules conversion discussion per se, but rather he talks about how he interprets new subclasses and game features in Eberron. http://keith-baker.com/
There's some indication that they might do more campaign setting books for 5e, in which case Eberron should be near the top of the list for popularity. Until then, scope around the homebrew pages and try your hand at micro game design!