As of now, Mht CET has not been cancelled. There is no official announcement regarding the same. So as of now no assumptions can be made. So keep preparing for the CET examination and if the corona pandemic gets severe and if there is no other option available iff this situation arises, then the authority will diplomatically sit and talk about this and try to bring some other alternative option. With time, things will become clear, As of now don't think about these things and keep preparing for your exam.

Best wishes. Thank you.