Like others, I'd be happy to buy a hub for a HomeKit, it's not a ridiculous requirement, after all Philips Hue customers needed to buy a new HoneKit compatible hub.
I'm sorry to say that belkin doesn't share your optimism for the maker: http://community.wemo.com/t5/WEMO-Hardware/Is-the-Wemo-Maker-discontinued/td-p/40131, which makes me suspect homekit and alexa are out for it.
Anyone can build a (much smaller) maker equivalent for $10-$15 custom devices, and with an aftermarket product like AutomationManager it'll work with your wemos, alexa, ifttt, stringify, and google home. Yes, it's android, and no I won't be doing an iOS version as there's no need. It's a hub so it's accessible from any browser including iOS and it runs on any inexpensive low end android device that stays at home.
Where is the Homkit hub? Belkin gone very quiet on this.