When can we implement change of endpoint from EchoSign.com to AdobeSign.com on Adobe Sign API?

I have a question about a recent technical notification regarding the domain name change from EchoSign.com to AdobeSign.com https://helpx.adobe.com/sign/using/technical-notifications.html?mkt_tok=eyJpIjoiTW1Jek1XWTRaV0kzTnpkaCIsInQiOiJTMGowWU44bVFMMTBXUGRxblpub2taV1hwQjVZR0FicGdRbTU2VTBxRUZlMkxwYTRYelh2T2I2QTVhZ0xyT0p2NjZxR1VPTHVzb1NNYXczMGpPXC9DcUp4TlQyWkM1SllETGJZSThOYVFibmx1ZzgrRHY5RWg0dnM2c2s2a3dUR2wifQ%3D%3D#domainchangesign. It indicates that the domain rollout is June 2020 and one of the actions we need to take is to adjust the endpoint that we connect to Adobe Sign through the API.

Is it possible for us to adjust the endpoint we use to connect thru the API prior to June 2020? If not, what is the timeframe that we have to make this change? 

Thank you