I can happily confirm that the newest trainer does indeed work with Vergil's Downfall. For me, at least; I can't speak for anyone else.

Can we get a new trainer for this game? Maybe with the devil trigger option too? That would be awesome...

One addendum: I've just discovered that I can't get the Red Skulls option to work, no matter what I try. With this in mind, I should add that I've only tested that, Infinite Health, Upgrade Point and Float Mode. The last three work, and I obviously can't speak for the ones I haven't tried.