The new map is already available in Crucible. While it wouldn't be safe to say that this is purely a re-skin, it is as close to the Destiny's original as it gets, with a slightly different decorum caused by a change of setting. You can (re)acquaint yourself with the Shores of Time layout below.
- Launch an alternative activity or location before going to the Tower.
- Shut down and relaunch the Destiny 2 application.
Once Bungie completes the investigation of this issue, further updates and/or hotfixes will be provided.