I don't want them to be on LPU 14 either.
When I first heard they were working on the soundtrack, I was expecting something like The Raid. An official soundtrack release including the original songs + score.
But (like someone said) knowing Linkin Park, they will end up releasing those songs on LPU 14, which sucks because that would leave space to only 6 other tracks. And since all these 4 tracks have vocals, the other 6 would be just instrumentals.