For EDW, yes. You might see smaller federated data marts or even separately managed relational dbs all over the place. But for OLTP systems for the vast majority of enterprises out there, the vertical single instance big hunk database is still big dawg.
> separately managed relational dbs all over the place
On the BI side, this is overwhelmingly the outcome for large companies. The business units get silo'ed, they build their fiefdoms, a consolidation project gets kicked off and fails, rinse, repeat. Even if the consolidation succeeds, it takes extremely strong leadership to keep it from devolving right back to silos. The tech is not the cause of this problem, so I don't foresee it being the solution to it either.
