Maybe an interesting solution is CloudCampus from Huawei which is comparable with Cisco Meraki. I'm aware of such Public CloudCampus controllers in China, France and Switzerland. Not just for access points but also for switches, routers and firewalls.
For On-Prem solutions you can also use some access switches as WLCs. I'm not aware of any virtual WLC and never heard about any intention from Huawei to change that.