If there is one thing that is certain, JEE  will not be cancelled.it will be only postponed. At this point in time, rest is all speculative. CBSE is supposed to give a statement to the Supreme Court as on June 23rd regarding either postponement or cancellation of its board exams. This hearing has been postponed to June 25th. And NTA will also have to consider many other factors before postponing JEE. The MHRD did announce that there might be an official statement regarding a fresh schedule for NEET, JEE and UGC-NET today. So there might be a change in the schedule of the exam. We do not have clear information as such as of now. There might be an official statement atleast before the end of the day. So please wait to hear from MHRD regarding this. You can ask either check the official news or you can come back post  June 25th. We should have updated information by then.We are expecting some information regarding JEE and NEET atleast by today or tomorrow