I'd like to see a change to the current window environmental kill. I'm sure I'm not the only one who feels that being thrown through a broken/open window looks ridiculous.
They should add different animations for different situations.
1: Closed window stays the same.
2: Broken window has Jason slam their face into broken shard of glass. You could even have the dead body stay there and either prevent anyone from climbing through or have a high fear penalty for climbing over a dead body.
3: Open window should have Jason slam the frame down on their head. This could also have the body stay in the window like #2.