Deletion of Superdiversity

Comment: Cited and discussed beyond a single paper: https://link.springer.com/article/10.1007/s11618-010-0159-y. And {{cite book |author1= Karel Arnaut |author2=Martha Sif Karrebæk |author3= Massimiliano Spotti |author4=Jan Blommaert |title= Engaging Superdiversity: Recombining Spaces, Times and Language Practices |url= https://books.google.com/books?id=eKCVDQAAQBAJ&pg=PA1979 |date= 24 November 2016|publisher=Channel View Publications|isbn=978-1-78309-681-7|pages=1979–}}. The nominator doesn't seem to have looked even at the first google results (the cited book makes it clear this is notable, and it is the FIRST hit in Google books for that term). 
Stance: keep
Cited policy: Wikipedia:Whacking with a wet trout (WP:TROUT)

Comment: Whilst I share the nom's disdain for needless superlatives, superdiversity has become a notable topic in sociolinguistics different from diversity. A simple  style search shows many reliable sources in GBooks and GScholar. Here is a chapter on the topic in a Routledge handbook that serves as a good review: {{cite book|last1=Budach|first1=Gabriele|last2=Saint-Georges|first2=Ingrid de|title=Superdiversity and language|date=2017|publisher=Routledge Handbooks Online|isbn=9781138801981|page=Chapter 3|url=https://www.routledgehandbooks.com/doi/10.4324/9781315754512.ch3
Stance: keep
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE)