Thank you for the FR. Actually, we have already built this environment (and Tensorflow-2.3 as well). However, since TensorFlow 2.4 is currently in RC2, we are waiting for the official stable release to ship all the environments (pytorch-1.6, pytorch-1.7, tensorflow-2.3, tensorflow-2.4). To give you an ETA, it should take a couple of weeks.
Hope that helps.