Just a small suggestion Regulas arrows should not be able to go through towers, forts or citadels if you are standing behind something and he snipes I think the tower, minion, fort should take the damage.
Just and Idea......
As soon as they remove the ridiculous ability of Rook to hit people with his hammer that are nowhere remotely near it, I'm cool with line of sight changes, although I believe such changes should be across the board to any "bolt" style attacks, including Unclean Beast's vomit, Torchs' blasts, etc...
I should also add though nice as that may be, that would likely be a pretty low level change to their engine, and doubtful at this stage..