Yes, the game supports most Bluetooth speed, heart rate, cadence, and power sensors, as well as most smart trainers and smart bikes. There is currently no support for fans or grade simulators.
My current setup - right now I use zwift on apple TV which connects to a wahoo cadence sensor, rpm sensor, HRM, kickr rollr smart trainer, kickr smart fan. Also have a SRAM power meter connected.
You probably already know this, but Apple TV has some limitations on simultaneous bluetooth connections so you have to use workarounds (for example zwift has a separate smartphone app that bridges the ATV and the devices).
Good luck, and let me know if you'd like any help with product or marketing.