I would be shocked if Acer didn't upgrade to ICS. I'd be more shocked if the devs at XDA didn't have a ROM cooked up for rooted users within 48 hours of the code release in November.
ever since i saw the talk about the new android os on appy geek ive wondered the same thing if acer tablet owners will get this new os. im really hope we do, but i expect that if we do it will be a little late.