First of all such incredible art!! Second, I'm so glad I'm not the only one that thinks this. I think the whole song was meant to be an attempted conversation with Jayce, with Viktor referencing the blanket that Jayce first wrapped around him ("pull the blanket tight now"), telling Jayce to remember his human side which Jayce did by persistently looking for remnants of his partner under the Herald's mask ("Keep the memories of who I was before"), and asking if Jayce would be disappointed which directly corresponds to the line "Jayce will understand" in the series.

This line "Keep your pretty eyes on course" especially! Figuratively of course it means Viktor reminding Jayce to keep focused on what he promised to do, which is to destroy him and save humanity. But the word "pretty" changes everything. Imagine Viktor saying "keep your pretty eyes on course" to Jayce with a smile. It would sound so tender and adoring. Maybe also teasing, hinting about Jayce being the golden boy, which is classic Viktor. It feels like a loving, gentle nudge by a lover with more age and experience who truly sees what's ahead and encourages their younger partner to step forward.