What does the quote how many ages hence shall this your lofty scene be acted over in statesunborn and accents yet unknown mean?

The quote from Henry V, Act II, Scene 3, spoken by the Bishop of Ely, suggests the play will be appreciated and performed well into the future. The bishop is commenting on the play he has seen performed in the French camp and is impressed by its quality and how well it reflects historical events. He asks the king to consider how this scene will be reenacted in the future by actors with different accents and customs, showing how the play's themes and messages will remain relevant and meaningful to future generations.