I have a theory, but I have not been able to finish the puzzle yet. With 4 hexagons and 4 requirements per block, I think each hexagon is describing a character requirement for GL Ahsoka's next requirement block.
For each hexagon, I think there are 5 keywords about a specific character. With 4 hexagons and 5 words per hexagon, that will give 20 words. The order of the keywords is not important. Using each letter one time, there will still be leftover letters from each hexagon after finding the 5 words.
Finally, I think you will need to combine the leftover letters from all of the hexagons to get one additional word or date. The remaining letters that have not been used yet should go on the end of the bit.ly link.
Hexagon 1:
In addition to Tatooine, I also found Anakin and Knight. I think the other 2 words from hexagon 1 will describe Jedi Knight Anakin (not GAS) as a requirement for GL Ahsoka. For other website owners who interact with the swgoh.gg api, you know that Jedi Knight Anakin's id is actually ANAKINKNIGHT.
Hexagon 2:
I am not sure if this one has Dantooine or Felucia. I am not sure about the other 4 words related to this character.
Hexagon 3:
Since you found Dathomir, I suspect this one refers to Darth Maul or Maul. Mandalore is another possible keyword related to Maul.
Hexagon 4:
In addition to Coruscant, Raxus is another possible word.