It is highly unlilely that NEET 2020 will be conducted in May. Though the current lockdown period completed by May 3rd, few States want to extend the lockdown further. And it has also been found out that Corona pandemic can be transmitted through community as well and so any large gatherings might not be suitable for control of his virus. So it might be held in June. Howeverthis is just a speculation and we would suggest you to wait to hear from either NTA or MHRD for official information. Meanwhile prepare for NEET as you have enough time.