I think by the end of 2019 we will have most of the features and weapons. I am confident we will have A2A completed. There isnt much missing anymore in AA, LTWS and data link mainly which are both planned after finishing the JHMCS.
Even the majority of A2G weapons should be finished. I dont think it will take long to finish the ATFLIR, LGBs, HARM (which is next on the list) I suspect that the Ground radar will be the trickest thing that may came later on.
This being said, all this is gut feelings :)