But why would they replace it? Even if it's not compatible they won't replace it. The question doesn't make sense.
A new MacBook Pro would still be compatible with your Cinema Display.
Well I don´t see why Apple or any company at all would replace it in this situation.
I would actually suggest holding off on any new laptop purchases for now, unless you really really needed a new laptop (like say, the old one broke, for example), because Apple will update their product line starting sometime in april or may.If I were to buy a new MacBook Pro