As has been pointed out, Cedar point doesn't really have room for any new coasters.
However, certain rides could be removed to make way for the next generation of CP coasters.
For example, Mean Streak is widely despised, and doesn't appear to have much airtime. Why not through it out and put in a GCI, Gravity Group, or Intamin Woodie?
Gemini doesn't look great either: not very smooth.
Finally: Corkscrew and Iron Dragon could be torn down assuming the nostalgia isn't too great. Without them taking up space, their area,as well as parts of MF's island, and possible some of the space inside TTD's huge oval layout, could be used for one or two really good coasters.
So, what should Cedar Point do?