u end up in a 6feet ditch, lol with worms and other creepy crawlies! A take on ur question would i suppose depend on which religon u follow, for hindus its reincarnation, for muslims, jews and christians its wait for judgement day i think. dont know about the other religons so please forgive my ignorance
the way i see it i'd love there to be an after life.. like reborn or sitting on clouds watching the living or doing what you like best.. but i dont think thats the truth.. i think its a case of you die, your brain dies.. and there is NOTHING after death, you dont think you dont see anything you dont do anything your just dead... no spirt, no memories, no nothing how many religions are there? quite a few.. IF there is an after life.. only one of those religions are right.. so whered the others come from? made up.. pure fiction.. i believe thats the case for all religions (sorry to any believers..)
rather than worrying about what will happen then , rather worry about what we do today and how if affects the future is more important. Do your good karma and all shall be fine.
You slowly decompose and become worm fodder even worse, have your grave dug up by the local zoning board and have a condo built over your empty grave.