Doubt reg the Info Cubes

Hello, Experts.

I few Doubts Regading, Cubes.

We have a cube which is getting Loaded from APO Every day. Now business has asked us to Chage the Data Source for Few Key fig and they want

few more char and they have removed few Char which are not really used for this Key fig.

In this case shall i use the same cube and create a new Data Source ,Info source,Update Rule /or/ go and Create a New cube?

they want few Key fig from the Old Data Source and Few from new Data Source.

and few Char are same in both the data Source. like Division, Sales Org, Customer, new char are Flavours, region, .... which are not in the existing cube.

Please Suggest me.

Thanks

Sharp