Hey there, Kit!
I'm the SPN mod on the site and I saw your message in the c-box earlier, and after a long discussion with the admin about Pamela we've decided we're not going to take her on as a character at this current moment in time.
Our main reason is as fun as a character she may have been, in the SPN plot she was not overly important like the characters we have already brought back like Jo Harvelle and Anna Milton, who both played major roles in the apocalypse and so on so forth. We have also realised that realistically we have already brought back a fair few characters from their graves and we are running out of plausible, plottable reasons as to why they have returned.
Also, as shown in the show, Pamela has already moved on into Heaven with Ash (hence why Ash hasn't been brought back either), so bringing them back as ghosts would be next to impossible, unless of course it is for the Ghost Plot we currently have up, but under those circumstances Pamela would be made an NPC and therefore unplayable by anyone who does not currently have a character on site.
HOWEVER, all this being said we may be introducing new SPN canon characters later. This is however, still being discussed amongst the admin/mod team so we have not settled the who and their purpose in the site but because we are moving plots forward to make them more updated it only seems fitting to have more playable canon characters.
I hope this answers your question and I apologise that you cannot have the canon character you have requested, but please don't feel deterred from the site! You are more than welcome to make an original character that is a psychic as long as it is not Pamela herself.
Thank you again for inquiring on this matter.