Glad they used Cypher. One of the best and most intuitive query languages I've used personally.
If your org is amenable to Google Spanner or already using Spanner, it has preview support for Cypher and graph semantics: https://cloud.google.com/spanner/docs/graph/overview
Not sure if you everyone reading is aware, but Neo4j did end up turning Cypher into the openCypher spec and that allowed a lot of other graph stores to adopt Cypher as a query language.