Get content properties and if it has children for get pages in space rest in V2 API

Suggestion Summary

In V1 APIs, it was possible to fetch content properties on multiple pieces of content in one request using expands. In V2, it is only possible to fetch content properties on one piece of content at a time. 

For the Get space pages , it is not able to return pages with its properties and if each one has children. In addition,  in v1  it is possible to get all those information just by using /rest/api/space/${spaceKey}/content/page?limit=200&depth=root&expand=metadata.properties,childTypes.page

Would it be possible to add the content properties information to the V2 API?