"Nu" started out being something of a disparaging term, but as time went on the ease of use of the "nu" prefix caught on with fans too. Sort of a "we're taking it back" type situation. I love the Abrams films and use nu frequently. It's just easier.
As far as an alternate name goes, how about
Ner-O-Verse / Near Original uniVerse / New Original uniVerse
(Explains the origins of the alternate universe with Nero and can be alternately described as saying Near or New Original uniVerse just going by the acronym)