I see no reason why they would. Animal only made an appearance and did not sign a contract.
As for Goldust goes, I didn't see where he appeared on TNA so I don't know if he appeared as Dustin Runnels or with the Goldust character but using a different/similar name but I'm assuming he entered TNA as Dustin Runnels or Dustin Rhodes. It's not like the WWE Alumni section is on the main page of WWE.com or is the main attraction unlike the RAW, ECW, SD and HOF rosters, which even if Goldust does gets pulled, it's not a big deal at all..