Xena and Shanna The She-Devil

 

The Savage Land is an untapped locale so far for the MCU.  I hope they get there eventually, though.  In addition to residents Shanna and Ka-Zar, some really cool Marvel Comics storylines have taken place there.  I'd love to see it and it's inhabitants brought to the big screen.

Xena Vs. Sauron

I'm not sure what to make of Amazon's upcoming Lord of the Rings series.  It is supposed to take place in the Second Age, the Age of Numenor - which is well before any of the main players in the original trilogy, or even The Hobbit, were on the scene.  I don't know whether JRR Tolkein had a blueprint for this era or if the new writers will be weaving their own tales from scratch.  Hopefully, we'll see some new information soon which will shed more light on the show.