Do you think that there could be a vaccine in the future to prevent type one diabetes?

Type one diabetes is caused when your body's own T cells attack the body's insulin producing B cells. It's usually caused when a virus (who lets say has the same antigens as the B cells) is attacked and destroyed by the T cells. When this happens, the T cells also end up attacking the B cells, mistaking it for a virus.

There was a study done in 2015 in Germany, from kids ages six months to two years and type one diabetes ran in their families. They took a powered insulin which aimed to strengthen the body's immune cells to protect the insulin producing cells. I cannot find the result of the study anywhere.
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Do you think that there could be a vaccine in the future to prevent type one diabetes?
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