I have a set of predictor variables and another target variable .
Now I am really confused on what method to use to forecast the target variable .
For e.g my data set have customer profit(which is my target variable) and a set of predictor variable(balances of different account) for one year for each customer .
Now I need to predict profit of next 5 years .I am confused in the part that I dont have the data(predictor variables) for future .
What are my possible choices of modelling .Please assist .