Going back to the trademark applications that first pointed at the name of these pods, the original generic name Stargazing Pods,
has been refused a trademark by the Intellectual Property Office
I believe that Alton were aware that this would be the likely outcome fairly early on, as a month after the initial application they put a second application in for the more specific Alton Towers Stargazing Pods
, which has been successfully registered.
So no changes to branding are required by Alton, but it would appear someone already markets a Stargazing Pod experience - maybe even with the actual ability to do some stargazing - preventing Alton from having the generic brand name.