Hello @mathmanu,
torch.fx is different from TorchScript in that it is a platform for Python-to-Python transformations of PyTorch code. TorchScript, on the other hand, is more targeted at moving PyTorch programs outside of Python for deployment purposes. In this sense, FX and TorchScript are orthogonal to each other, and can even be composed with each other (e.g. transform PyTorch programs with FX, then subsequently export to TorchScript for deployment).
Please stay tuned for more information about FX early next year. Note that FX is very unstable at this point and we do not recommend building off of the code in master at this time