Now that's just crazy talk -- we'll have split into North California and South California by then.
Besides, the proper definition of LA-hood is not so much geographical as linguistic -- I used to define "LA" as "all of California south of the Grapevine", but several years ago I changed that to "any place where people say 'the' before their freeway numbers".
(The "the" issue almost caused a civil war in my family, when I caught my sister doing it after only a couple years at college (UCI). We eventually reached an armistice by establishing I-5 as a sort of demilitarized zone between NorCal and SoCal: when she's driving up to visit us, she takes "the 405, to the 5
, to 580, to 13"; then to return, she takes "13, to 580, to 5
, to the 405".)
(I find I can still irritate her by referring to Irvine as "LA".