A Bright Future or No Future At All?

I was surprised to discover that the ending of the play, A Raisin in the Sun, left the audience in suspense. Even after Walter Lee's big mistake of giving his money to Willy Harris for the liquor store, the family decides to move. The Younger family decides that they will not live in their small portion of a house no more. Ruth's pregnancy surprise sparked Mama's interest into buying a bigger home. Ruth's son, Travis sleeps on the couch because there is no bed for him, so where will the new baby sleep? Mama's decision to pick a house in an all white neighborhood during these racial times, was a risky thing to do. Ruth and Walter were taken by surprise by the news. 

After almost not moving because of the huge money offer for the house in the white neighborhood, the family decided to move. Since racism was high in the 1950s, the audience is left with their imaginations. One does not know if they will survive in the white neighborhood, but they are taking that risk. What would happen to young Travis? Will he be tortured and tormented in the new neighborhood? How long will the Youngers live if they stay there? I believe it is how one perceives it. 
 
A new beginning or death?

There is no clear ending, but would the play be ruined if it were to continue?