Well, I do like the new Wormhole, it is something I've wanted for some time. But, I do agree that the loss of the single targe WH is rough. It has a lot of strategic uses, I like it.
I have never liked Dimension Shift. Using it has never made the team happy. I got rid of it long back. So, my suggestion is this, return current WH to it's old status. Replace Dimension Shift with the new AoE wormhole.
I don't like the idea of turning Propel into a cone. Maybe I'm just not looking at it right.
But, I do like the idea of replacing the lift attack Singularities have with propel instead. Even the old propel (as that is what I was looking at when I thought about it). For one thing, it would be very entertaining. I would have prefered this to having propel buffed.
Just my thoughts. Gravity is fun.