Yes you can already do this with GraphQL.
{
publication(namespaceId: 2, publicationId: 759917)
{
title
customMetas {
edges {
node {
key
value
}
}
}
}
}
It will list all properties and one of them is:
{
"node": {
"key": "FISHPUBSTATUS.lng.element",
"value": "VPUBSTATUSPUBLISHEDDRAFT"
}
},