I am a bit of a law junkie, but not a lawyer by any means. With the Bob Menendez superseding indictment today an old question came up. I feel like I should know this but…

Does a superseding indictment have to be a more “serious” charge? (Sorry for the terminology) this may be a bad example but if someone had already been charged with burglary could a superseding indictment then be unlawful entry?