I don't think we need specialized databases for vectors. Relational databases can easily be expanded by vector data types and operations. They will eventually catch up by supporting what was once a unique feature of the new system: https://medium.com/@magda7817/two-things-to-keep-in-mind-bef...
Yeah, this is my sense too. They will be slower to add these new requirements but they should be able to add these vector capabilities within a year or so. It's then a question of ability of smaller vector db companies to mature and add regular db capabilities, while innovating.