Don't worry you will get them if you own private key for that wallet.
That is correct, however, to "cash out" the bitcoin gold without compromising your paper wallet you'll have to jump trough several hoops.
If you ever decide to "cash out" the bitcoin gold, it might be a good idear to sweep the paper wallet into a different wallet, wait untill the sweeping transaction has confirmed, and afterwards (and only afterwards) import the private key from your paper wallet into a bitcoin gold compatible wallet.
This instructions should be followed, don't import your private keys if your private keys still have the funds and bitcoin on it. And once you imported the private keys to any wallet that's compatible to bitcoin gold, dont ever use the private keys again.