I would find it encouraging if Taric was the Adam Strange of Runeterra.
A little background for those less knowledgeable of DC's extensive B-list and C-list hero cast.
Adam Strange is basically a hero who was born of an age where the wonders of space exploration was in the collective fantasy. He comes from a breed of cosmic heroes who found adventure in strange and fantastic alien settings, asking questions like: Could there be other life and civilization out there? What would it be like? How bangable is it on a scale from 1 to 10?
At the core of things, Adam Strange is just this guy who was transported to a strange place he didn't know anything about and fell in love with the people there, taking it upon himself to become their champion (naturally, in the more imperialistic noble white- I mean, "Earth" man way of the old age upon creation which has gradually shifted to that of a friend and adopted son of the culture in more recent incarnations) He becomes a being of two worlds, starting a new life on the alien planet Rann while still keeping his attachments to Earth.
So, the Targonians are now a race of space-travelling cosmic weirdos. That's...well, bizarre and confusing for starters. I can only imagine the conversation in the lore team's discussion room went something like:
Writer 1: "So, what kinds of genres and settings do we want for the direction of this new lore?"
Writer 2: "Yes!"
Writer 1: "What?"
Writer 2: "All of them!"
But hey, the word is in the book now and it seems like a pretty decent assumption that this is where Riot is going to solve how Taric is a champion from another planet.
Taric is probably going to be reintroduced as some kind of emissary from a breed of Targonians far away sent to repair the star gems on Aurelion Sol's crown, by my best guess.
I reallly...reallly really really really really do not want to see Taric literally turned into a Space Marine. Can we please retain the basic kindness and humanity of the character that was hinted at in his original lore? A noble/scholarly knight of sorts who travels to what is frankly a savage and deadly alien world in his eyes, but comes to respect, love and protect the people he finds there even if he has this greater mission, maybe? Not a cold, detached soldier of some advanced empire carrying out his duty at whatever cost.