Only if the OTA doesn't change the bootloader, then you will have to find another root method.
@jeannieindigital, I do very much appreciate you discovering and posting this tip about how you moved the Maps & Youtube apps to the SD card, and I don't want to get in a p***sing contest with you.
However, that being said, I think it's ill advised to post instructions advising people to DELETE systems apps in a manner that could prevent any future OTA updates. Just because YOU many never want to OTA update your phone (for whatever reasons you have), it doesn't mean that everyone feels the same.
What I tried to point out in my earlier posts is that the instructions, while a great start, should really advise people to back up their system apps before any deleting so the phone can be restored to a "factory" state in the future if they so choose to. (My point being, I would expect you need a way to get the factory version of the app back into /system/app for OTA updates to work. If you simply download from the market, the app will end up in /data/app)
Someone else chimed in earlier that the SDX Stock App remover makes a backup before deleting a stock app. I think using this app in conjunction with the rest of your process would make the ideal solution.