They have posted some additional information on their blog: https://blogs.dropbox.com/dropbox/2017/10/creative-energy-ke...
You can see the new frontpage here: https://www.dropbox.com/allyours
You can see the new frontpage here: https://www.dropbox.com/allyours
I always perceive words like "excited" in PR statements as corporate narcissism. This kind of language shows that they have become too self-absorbed, the new unfitting design is just another symptom of it.