The last film finally teased that Dumbledore was entering the fray, and while I think we’re still a long way from Dumbledore v.
If you live to be 116 years old, then you will have lived long enough to have some accomplished things.
Fans are likely to learn much more about Dumbledore in the Fantastic Beasts movies, as some of the most important years of his life will hopefully gain some elaboration.
Dumbledore was one of the most prominent wizards to have lived, and while he made several mistakes and miscalculations, he was ultimately a force for good.