As far as I know, everyone's been assigned to the April/May courses (that was according to HR about 2-3 weeks ago), so for anyone getting their results of Stage 3 around now, I wouldn't be getting my hopes up if I were you!
I'm currently on list for July/August - still a fair few places and it doesn't look like you'll be bumped to October unless you want to be...
Well done to those who've passed Stage 3 recently - I passed my medical on Friday so now I can relax!