I fear that Watch apps will be subject to the same capricious rejections and inscrutable policies that are already spoiling what should be a renaissance of fresh ideas. Between the lack of sustainable productivity app pricing (subscriptions, trials, paid upgrades) and the unpredictable threat of an App Review rejection, I personally cant summon any excitement whatsoever about WatchKit. Why should I give a s--- about sassy new hardware if the only apps worth building either cant make money or might get rejected?
Unless something changes at Apple, I predict that well mostly see two kinds of Watch apps next year: hobby apps by curious solo developers, and play-it-safe, free apps for business like Twitter or eBay. And it will be a shame, because the Apple Watch will deserve better.