"Villain" has to be debated, but that is an argument I'm not particular to have. It shall be decided by the Emperor Ing/the plot, so I much prefer to wait.
Regarding the rest, I give you 50% chance of being right. I see only 2 things that last panel might lead to: a "sacrificial" death you've described; or it might lead to the classic James Bond (I think it's the best troper, but probably not the original) escape: hit the explosion button, jump of the cliff, be saved by a plane/helicopter/Q's invention.