He'll regenerate into the 13th Doctor.
He dies of liver poiusining from excessive alchol consumption.
We don't know when he dies, but we know how - on a planet called Tranzelore, the Doctor dies in battle, the TARDIS used as his tomb.
The Tenth Doctor dies and regenerates into the Eleventh Doctor
She dies
11h.11min
11h 00m 00s, +15° 00′ 00″
Plant's growth will be affected
To his replacment.
You die with it, sadly.
he dies...
it dies