Real ID has more or less happened. States still issue IDs that don't meet those requirements, but at some point it's likely enough to actually become a requirement for using the ID to fly (instead of being delayed again).
The ID standardization parts mostly happened. The parts where the underlying State databases are shared with a central Federal government database did not.
There's a data sharing system, it isn't clear if it is entirely functionally equivalent to a centralized database, but it certainly goes in that direction if you compare it to not having a sharing system.