Lore is a very interesting topic.
To ancient Europeans and North Africans, Myths and Lore was used to describe truths about the characters, not facts or historical events. If I wanted to say that Bob is a humble and giving person, I would write a story saying that one day he gave thousands of dollars to random charities, but didn't tell anyone. Did Bob actually do that? Maybe he did, maybe he didn't, but the point of the story is lost when you're getting into the details such as "which charities did he give money to?" or "When did he do this?"
So the Lore was at some point created to express truths, not facts. So theoretically we can create new Lore and new stories describing the gods and it will still have the same effect.
I also think that we need to address the unnamed gods more, such as Tyr's unnamed wife.
At this point we should probably ask ourselves, where did the names of gods come from? They come from titles, not names. They ultimately derive from titles that encompass their attributes. The gods didn't literally descend down and say things like "My name's Odin!" "Sup? I'm Tyr" or "I am Thor!" Rather the people gave these abstract entities titles such as "Rage Master" "Sky Father" or "Striker".
So theoretically again, we can create names for the gods without names. Example: Tyr's wife. There's some sketchy evidence to suggest that she is named Ziza, and etymological double to Zeu, a central German name for Tyr. This makes sense considering that many wives of Tyr's cognate deities (Zeus and Jupiter to be exact) are also etymological doubles (such as Dione or Juno).
If we are to fully reconstruct her, it would probably be something to the effect of Teiwo or Teiwa, The Queen of Heaven.
