Emmeline is nice but probably a little too old-fashioned for my tastes. I wasn't aware that there was an Emm trand though.
Emma,
Emmaline,
Emmet,
Emily etc. are all classic names that have been aorudn for ages and I would hardly call them trendy.
Elizabeth is a cool name (I prefer
Elisabeth), I'm not opposed to it's nicknames because I think it is a very big name for a little girl to have and some of the nicknames from Elizbeth are quite nice.
Emma