English is well "alive", and living implies mutation. In 500 years, our children would be reading our English as we read Shakespeare (that is, with difficulty); and in 1000 years, our English would become what Beowulf looks like today (that is, you can't recognize a word).
Latin doesn't change. Caesar's Latin is Vulgate's Latin, which is Newton's Latin, which is the Pope's Latin, which is the Latin used in Harrius Potter et Philosophi Lapis and Winnie ille Pu.
What is dead may never die. The "English" as we know it will die. Latin will not.