yeah pretty much. I think someone else left too. Apparently their popularity exploded right before their 'farewell tour' (i think they picked up a lot of fans off the copeland tour), and it took Leighton by surprise, made him and the other guy decide to stick it out. Same lead vocals, now they don't have a female backup vocals, so far as I can tell. Which is a shame, because the harmonies are one of the best parts about Illuminate.
It's just Leighton and Craig (drummer) now. The original guitarist (Steve) left the band right before their farewell tour and Mindy left a while before that.