So here's my not so accurate translation :
At Lionesse King Barta said it's a miracle that the Demons are retreating
Back at Camelot, Ryudoshiel is vanishing and saying that the Demon king is gone (not died) and now the there's no threat thanks to the Sins who was able to accomplish something no one was ever able to do.
And he said it may be the first step to a world were Demons and Goddesses who hated each over for so long could finally understand each over and more...
He then say good bye to he's brother and told him he's going back to the Celestial Realm (??) and Elizabeth said thanks and told him to "be patient"
Back to Sins, they are happy for Meliodas' return but King said there's still Elizabeth's curse to deal with but they don't know how now that there's no Demon King power
And Diane start to cry
Elizabeth said it okay that she'll be reborn again etc... Merlin said something about being her sis-sis
Meliodas then said that there's still a way to break the curse. Everyone asked how but he just do his stupid face and Ban asked him if he still have the Demon king power but of course he didn't answer
He then said "Merlin, please" and she invocked the curses.
Meliodas turn into his demon King's form and Ban & Merlin are a little shocked.
He tells Elizabeth he was sorry for making her wait 3000y and she remembered what he told her after killing Fraudrin (??not sure this one??). She start crying and ask Meliodas if he will ever leave her which he respond "only if she has enough of him"
He break the curses, they cried and she said that now they can have a new start (??)
And they're going back to Lionesse, forgetting about Zeldoris...
Next Chapter "Epilogue 1"