Yes! One of the great things about Wahoo Fitness products is that we try to make them all work together. So you could use an ANT+ Wahoo Bike Case to grab data from an ANT+ power meter, at the same time as a Bluetooth 4.0 Wahoo Blue HR for heart rate (as long as you have an iPhone 4S) and your bluetooth classic headset.
Just remember that Bluetooth changed the way you pair Bluetooth 4.0 products. So while you pair your headset in the bluetooth settings in your phone (Settings-> general-> bluetooth), you'll need to pair the Wahoo Blue HR (or SC) in the settings WITHIN whatever app you're using with the sensor (ie Wahoo Fitness App-> Sensors -> Add New Sensor).