Wot else would the Kingdom do for humankind...?

Jesus did more that just promise wot God's Kingdom will do. He SHOWED wot it will do. Jesus performed many miraculous healings!
Demonstrating on a small scale wot he will do on a far greater scale in the future during the Kingdoms rule.

Matthew 4:23 says... ''He went around throughout the whole of Galilee, teaching in their synagogues and preaching the good news of the kingdom and curing every sort of disease and every sort of infirmity among the people.''

Jesus performed a wide variety of cures. He 'opened the eyes of the blind,'(john 9:1-7, 32, 33).
with a gentle touch, Jesus healed a man afflicted with the loathsome disease leprosy(mark 1:40-42)
When 'a man deaf and with a speech impediment' was bought to him, Jesus showed that he could make 'the deaf hear and the speechless speak' (Mark 7:31-37)

Not even death itself could stay the hand of God's appointed King.
On 3 recorded occasions Jesus restored life to the dead.

He resurrected the only son of a widow(luke 7:11-15),
a 12yr old girl(luke 8:41-55) and his friend lazarus(john 11:38-44).

Describing the marvelous future that subjects of God's Kingdom, Jesus foretold through the apostle john:
'look! The tent of God is with mankind, and he will reside with them, and they will be his peoples. And God will wipe out every tear from their eyes and death will be no nor, neither will mourning nor outcry nor pain be anymor. The former things have passed away'' (read this in Revelation 1:1 and 21:3,4)

mate just imagine a world like this..No tears of sorrow, no pain, and no death!

Then the prayer for God's will to be done on earth as it is in heaven you will fully realise.

When will Gods Kingdom come...?

Jesus taught that the start of his kingly rule would coincide with a marked period of time that he called his 'presence'.
Jesus gave a detailed prophecy detailed to indicate when his presence in kingly power would begin.
This time would be marked by global troubles, including wars, famines, earthquakes, pestilences, and an increasing of lawlessness(read bout these in matthew24:3, 7-12 also luke 21:10,11)

these and many other features Jesus foretold are on the increase in our times. Hence, Jesus is now ruling as king. Soon the time will come for the Kingdom to come and cause God's will to be done on earth.

Wot will the coming of God's Kingdom mean for you personally....?

That all depends upon how you choose to respond to Jesus' message.

wat u mean by 'respond' ?