Could the Songs of Pentakill be references to the lore?

Before the release of the new album, i always linked "Thornmail" with Mordekaiser; King of an old Kingdom that wears an armor.

Someone already mentioned that Mortal Reminder fits Varus (https://boards.na.leagueoflegends.com/en/c/story-art/1bHLtNw7-mortal-reminder-fits-varus )

So, How about the rest of the songs?

Tear of the Goddess could be a reference to the Watchers and Iceborn Infinity Edge could be a reference to the Ascended of Shurima Frozen Heart could be a reference to the Aspects of Targon Blade of the Ruined King... maybe they are talking in the language of Runeterra about the Ruined King?

Maybe there are some songs about things to come... who knows.