I think it depends on what we want from the series in general. Those that want continuity, which seems to be the direction Nintendo is heading in now that they've published HH (albeit with a fair bit of retcon), are obviously going to want races that are basically the same, or at least have a quasi-reasonable explanation for evolving into something else (Zora/Rito). Beyond that, though, for me it comes down to a battle between nostalgia and the excitement of new things. Part of me loves all the OoT races because that was the basis of my initial love for Zelda, and I'm always slightly disappointed not to get to hang out with my old friends. But at the same time, I think that having new elements introduced is what keeps the magic and sense of wonder that has always been a huge part of the series alive. So, basically, as usual I am conflicted.