Insulin dependent diabetes: is there any other treatment to reactivate pancreas to generate insulin?

Incretins. Animal models show that incretinsanimal agents, so called glp-1 such as byetta, can preserve and regenerate beta cells in the pancreas. It remains to be seen if such observation takes place in humans.
Insulin. None at the moment, although there are some researchers (emory university in atlanta) who are working on islet cell transplants. Islet cells are the cells in the pancreas that make insulin.