Maybe, but I think the designer intends to use stronger plastics don't quote me on that. I mean if not and they wear down similarly to originals at least you can actually buy more parts that are new, I just hope they are good spec and last a few months.
On the kickstarter page ill summarize what I know.
There are many plastics he could use, he intends to research what low friction high durbility plastics he can use, and is prototyping with one that was more flexible and one that was harder and durable.
I think he is going to ensure that the design is good before settling on the final material because it seems like the stick sensitivity wasn't perfect in that latest video he had on his page, but I am speculating. I wouldn't be surprised if what we get is something that works well as designed but isn't the highest quality material at this point, but I think the designer intends to make a high quality product.
https://twitter.com/KeroKeroppi64/status/780191965656801284 I think this tweet illustrates what the preorder quality might be like
