By TP they will mean the Travel Package cert.
I am in a similar situation, would love to shift a stay with a TP cert attached back to early next Summer, however the attached Cert expires this August, or January if going on the basis of the extension. I suspect another TP cert. extension will be possible down the line (touch wood), however at this point it’s unlikely to be of much use unless the property can configure it all at their end to push it back.