Just as long as they continue to use helium instead of hydrogen.

Actually I think it's agreed that the problem with the Hindenberg didn't have anything to do with using Hydrogen rather than Helium, but came about because of other inflammable components.

And the factor that gave heavier than air machines the edge of airships was that the latter were essentially useless for miltary purposes, which meant they didn't have the same enormous amount of resources thrown into developing the technology.