There don't appear to be dramatic changes to the keyboard design, not to mention the rest of the machine. Whether or not that's a problem has yet to be seen, but it does mean that the keyboard is just as costly (at least for Apple) to fix as before. Apple will likely have to replace the top case assembly, including the battery, speakers and Touch Bar, if there's a fault with even one key. This might not be as serious an issue as before if the keyboard is more trustworthy, but it's something to consider if you expect to keep using the system well after its warranty expires.