The ending of the show will be an elaborate battle between Shane, Rick, and their different ideologies.
Rick will defeat Shane with one final punch...
and as he does, God descends from heaven and tells them that they are allowed to enter his kingdom with all of the other survivors of the zombie apocalypse.
Four trumpets sound, the zombies warp to heaven, nestled in God's arms, anon to be devout soldiers of the kingdom once more.
The Earth descends into darkness and then...
wipe.
BOOM
"THE WALKING DEAD"