Numerous claims like this have been made.

The real evidence is actual artificial structures underwater that are organized like a city. Remnants of neolithic sites while interesting would not qualify as ancient civilizations. Most of these claims which include the name Atlantis become suspect and rightfully so.

There is a site off the coast of western Cuba. Numerous efforts at determining whether they are natural or artificial has yet to be determined. Tantalizing scans video are not evidence. Only clues. Unless the dives at the site above(Cyprus) can show close up structures or such it will not be anything new. We are waiting for the returns at the Cuban site with the Deepworker submersible.