Don't worry. All architectures get recycled eventually. Everything is new again.

One of the biggest problems with having more data is it's just hard to manage. That's why cloud data warehouses are here to stay. They enable the "utility computing" of cloud compute providers, but for data. I don't think architecture is a serious consideration for most people using it, other than the idea that "we can just throw everything at it".

NewSQL didn't thrive because it isn't sexy enough. A thing doesn't succeed because it's a "superior technology", it survives if it's overwhelmingly more appealing than existing solutions. None of the NewSQL solutions are sufficiently sexier than old boring stable databases. This is the problem with every new database. I mean, sure, they're fun for a romp in the sheets; but are they gonna support your kids? Interest drops off once everyone realizes it's not overwhelmingly better than the old stuff. Humans are trend-seekers, but they also seek familiarity and safety.