Who's paying for the transition? The customer or Tesla?
Funny this got downvoted. Was this comment controversial in any way?
You get downvoted because the question is redundant. It's like asking who is paying for the next gen iPhone or whatever. You buy the product as is and when a new better generation of the same product comes out you don't get a free upgrade because you bought the old version.
Unless you smash them up just keep them clean and they seem to last quite long, at least as long as comparable steel or aluminum frames.
The weak points are where aluminum is bonded to the carbon, those spots you need to monitor and if there is any damage at all you should count the frame as lost.