Rick Grimes got shot at the end of issue #191 by Sebastian and it seems Sebastian kills him completely on issue #192. This is all based from the page that got leaked online after some retailers got the merchandise for this week

It's over. #193 is going to be the final issue, even though #194 and #195 have been solicited.

Eugene, using a ham radio, locates another community. They travel to find this community, and discover it's called 'The Commonwealth' and is home to some fifty thousand people. Life is generally pretty good there, they have a large security force and a lot of amenities like sports and cafes. The Commonwealth is run by a woman named Pamela Milton; it is set up so that the people who were in charge in the world before (the 1%, as it were) are now the ones running the Commonwealth while everyone else sort of slaves for them. Milton has an asshole son named Sebastian, who is a spoiled, entitled prick. Anyway, when Rick and his crew arrive, it sort of sparks a rebellion by the working class egged on by Dwight and another former Saviour. Rick is able to put out the fire, but the future of Pamela Milton's reign is uncertain.

At the end of issue #191, Sebastian Milton sneaks into Rick's hotel room and shoots him with a silenced gun.

In the beginning of issue #192, we see Sebastian shoot Rick several more times and finish him off. Carl goes into the room to wake up his father, and discovers Rick's reanimated corpse shambling around the room, and he immediately puts his father down.

Issue #193, the final issue, opens some fifteen or twenty years later. Carl is married to Sophia and they have a daughter named Andrea and live on a farm. A walker comes shambling into Carl's yard, and Carl puts it down. Later, the sheriff shows up at Carl's house and tells him that the walker was owned by Hershel Greene (Glen and Maggie's son), and that Carl is being charged with destroying private property. Hershel owns a sort of sideshow attraction that puts walkers on display, since by this time, they have become rare and almost extinct.

Carl goes to court, and President Maggie Greene makes a surprise appearance and orders the judge to make Carl recapture another walker for Hershel to replace the one he killed. Carl is pissed off, and off-camera, kills the rest of Hershel's walkers. He is then re-arrested, and taken to Judge Hawthorne at the Commonwealth, who turns out to be Michonne. She unilaterally rules in Carl's favor and makes it illegal to own walkers. Carl goes back home, and the final scene is Carl telling the story of Rick to his daughter. The End.

Along the way, we learn that Negan is still alive and living in a house outside of the Safe Zone when Carl goes to drop off supplies, but he isn't home or won't answer the door and we don't see him. President Maggie's kind of a bitch, and her son is spoiled douchebag.. Jesus and Aaron are still together. Lydia is still around, and Carl spends a night on the road with her, refuses her advances and doesn't cheat on Sophia with her. Michonne has a granddaughter. Eugene, who might be sick and dying (or maybe not), has built a railroad connecting the East and West coasts. Princess and Mercer still seem to be together. Laura (former Saviour) is bitter toward Rick and Carl. Sebastian Milton is still in prison for murdering Rick, and being visited by his now wheelchair bound mother.