ebtables-translate -t nat -A PREROUTING -i someport -j dnat --to-dst de:ad:00:be:ee:ff
nft 'add rule bridge nat PREROUTING iifname "someport" counter ether daddr set de:ad:0:be:ee:ff accept'

ebtables-translate -t nat -A PREROUTING -i someport -j dnat --to-dst de:ad:00:be:ee:ff --dnat-target ACCEPT
nft 'add rule bridge nat PREROUTING iifname "someport" counter ether daddr set de:ad:0:be:ee:ff accept'

ebtables-translate -t nat -A PREROUTING -i someport -j dnat --to-dst de:ad:00:be:ee:ff --dnat-target CONTINUE
nft 'add rule bridge nat PREROUTING iifname "someport" counter ether daddr set de:ad:0:be:ee:ff continue'