These noun forms don't quality for speedy deletion. You're not the only author, and they have Swedish interwikis. RFV would be my choice (or just nothing at all).
You can google the plural forms, and see that Wiktionary (and its byproducts) are the only hits, or you can think for your self if pandeism/pantheism can ever have a plural. It just doesn't happen. I have reduced the main entries (pandeism#Swedish, panteism#Swedish) to uncountable, which doesn't require any discussion.