It would be great if ESO has a serious DM. Currently, death is rather meaningless as one can revive and get back into the fight which seems to be a deathmatch lite. A better design would be offering multiple rounds and the team who survives a round wins that round. At the end of each round, everyone who died is revived for the next round and their potion cooldown would be reset.
A mechanic to handle someone waiting in stealth would be required. It should be permitted but not so they wait until the very end.
Once a team wins two rounds they win the match. With 4v4v4 it may require winning more than two rounds.
Considering there are some interested in a more competitive deathmatch I think this is the way to go. Make death in a deathmatch more meaningful.