Riot, have you considered adding in themes for the rest of the roster, maybe playing them sometimes?
Ex. A "Play of the game" thing at the end of each match, with the "playmaker" having their theme played.
Of course, with the sheer number of champions who don't have a theme, this would obviously not be a short term project.
https://www.youtube.com/watch?v=vsHsGLYR4WM
(No Theme)
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=0AvWV6Mk374
(No Theme)
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=ApCoJeatwac
https://www.youtube.com/watch?v=smNA_BYDODU
https://www.youtube.com/watch?v=MWHmgob5FDA
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=F8cPDpXnQa0
(No Theme)
(No Theme)
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=upgwV0pIpXY
https://www.youtube.com/watch?v=ay_o-BGVhL4
(No Theme)
https://www.youtube.com/watch?v=H1xHayXetLU
https://www.youtube.com/watch?v=8_OSWJeVTg0
https://www.youtube.com/watch?v=skD_I-SHk30
(No Theme)
(No Theme)
(No Theme)
(No Theme)
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=eWmmpo5OsC8
(No Theme)
https://www.youtube.com/watch?v=Awa7fpGmtf0
(No Theme)
(Shared Theme) https://www.youtube.com/watch?v=RpuGMYQsAx8
(No Theme)
(No Theme)
https://www.youtube.com/watch?v=ZLhDBm2YtsU
(I would go on listing champions and their themes or lack thereof, but that much work on a track pad is annoying as hell.)