Z might as well cede the Donbass along with Crimea and territory needed to assure the people there have access to power and water and can live in peace
The people in what is ALWAYS referred to the “ Russian separatist” areas are NEVER going to be safe and treated well as long as “ extreme right wing Slava Ukraine Bandera-redux orgs ” ( ahem) exert control over Z and are permitted to build their own loyalist security and military organizations, as well as placing their believers in key political and UKR military command positions
In this article, Z has agreed to keep water flowing to Crimea, regardless of any future negotiations. Vast majority of Ukrainian never had a problem with water flow to Crimea. Only political pressure from the Crimean Tatars caused the water cutoff.