As you cut them, what does the pith inside the cane look like? I seldom wait too long this time of year. I go ahead and cut, and allow the rose to renew itself - unless it is a once bloomer.

Sammy

I'd wait. The forsysthia is still blooming, so it is still early. It will probably all be cut down anyway, but waiting will give you a clearer idea of what to do.

Once upon a time, I did some late fall pruning. Something happened, and I didn't get the clippings all picked up. When I found them the next spring, they were still green and flexible.

You don't have to cut it all off at once. Take off anything you know is dead now and give them a couple more weeks to see what may start to bud out and then take off the rest. I usually end up having to do this every year because on the first round I tend to err on the side of caution and leave things that look iffy. Then once it gets warmer and they start to really grow I can see that they need further pruning and where they need to get cut back more.