The next newest city in the IE?

Out of the top five most recently incorporated cities in California, Riverisde County has 4 on that list:

  1. Wildomar: July 1, 2008
  2. Menifee: October 1, 2008
  3. Eastvale: October 1, 2010
  4. Jurupa Valley: July 1, 2011

My question is what unincorporated or census designated place areas are most likely to become a city. A few areas that come in mind are

Bloomington ~23k pop Muscoy ~10k pop Woodcrest ~14k pop Mead Valley ~18K French Valley ~35k Temescal Valley ~22k

I know incorporating a new city is more complex but it's interesting to think about some possibilities. I would love to hear your thoughts on this.