The Exodus always remains a continual and present reality for the people of Israel—it is always on their mind. It was and remained the big salvific event of the Old Testament, yet at the same time it points forward to what God will yet/continue to do to save His people.
In our preaching it is important to decide how to understand this. Are we going to preach the “now” or the “not yet”? As the people of Israel are living in their “now,” are they hearing the words of Isaiah as the “not yet” or, the “not yet of the not yet”?
God is still faithful. There are still the covenantal promises. There is still the preservation of the Messianic line because He who promised, He who covenanted, must be faithful.
The Promise Land's true value is in the gift of Jesus who will provide His blood and very life to endow all people with forgiveness and everlasting life for His children.
The people to whom Ezekiel is prophesying are in exile—separated from the Holy Land. To return to the land of Israel is to be resurrected to new life, to be restored.