Hi and welcome.
If you mean truly End-Stage Liver Disease (ESLD), the liver disease is irreversible as the name itself implies. For someone with ESLD the only option to continue living is to have a liver transplant as the liver has become too damaged to recover its functionality again and in time will fail.
Unfortunately, there are many more patients waiting for liver transplants than there are available organs. Therefore people with ESLD from Alcoholic Liver Disease (ALD) need to have stopped drinking for at least 6 months and need to never drink again to ever be put on a waiting list for a liver transplant. ALD patients must undergo a thorough evaluation to determine whether they are suitable candidates for transplant. This screening addresses any coexisting medical problems, such as heart damage, cancer, pancreatitis, and osteoporosis, which might influence the outcome of the transplant. It includes a psychological evaluation to identify those patients who are most likely to remain abstinent and comply with the strict medical regimen that follows the procedure.
Cirrhosis has different stages or classes disease. From early cirrhosis with no symptoms (compensated), to decompensated cirrhosis and the appearance of complications such as ascites (fluid retention), varices (large veins along the GI tract), hepatic encephalopathy (mental issues), etc. etc. and then the final stage of ESLD.
If a person stops further damage to their liver when the cirrhosis is in its early stages many times it is possible for the liver disease to reverse itself over time. Often over a period of many years. Only a doctor can assess the stage of the cirrhosis and its prognosis.
I hope this answers your question.