It will never happen because DT is one of like 5 bobsled coasters in the world and is still a pretty decent ride. I don't see CP removing any coasters anytime soon and not because they'd lose the "most coasters" record. They won't remove them because each one serves its purpose in some way. DT isn't the tallest, fastest or greatest ride, but if you saw the line at 3pm in July you'd swear there was a 500' coaster in the warehouse.
I would really like to see the theming brought back to what it was in the early 90's with the robots and such. And maybe even take off some of the tunnel coverings so that you get thrown into day-light and back into darkness, it could add a cool effect to it.