If you want to get the Cubase Pro 11 grace period, you should keep the download code for the 10.5 license, and not download or activate the 10.5 license before Cubase Pro 11 is out.
If you want to get the Cubase Pro 11 grace period, you should keep the download code for the 10.5 license, and not download or activate the 10.5 license before Cubase Pro 11 is out.