Yes, Moto Z2 Play 64GB comes with latest 7.1 Android OS so you may not require to update it immediately but going forward, company will produce OTA updates.
No. Moto Z2 Play does not have IR blaster sensor.
No. Moto Z2 Play does not support CDMA network.
No. Moto Z2 Play does not have HDMI port but you can use HDMI connector.
Moto Z2 Play thickness is just 5.99 mm. This is one of the thinnest smartphone in the world.