The bottom line is that Celgene plans to replace Revlimid, but not with just one drug. Instead, Alles pointed to four hematology drugs in Celgene's pipeline that he thinks will take the baton from Revlimid and become blockbuster franchises.
Does Celgene plan on just breaking down Revlimid into four different drugs to max out profits? that seems what it looks like to me.