Disclaimer: These are just the musings of a long-time Apple-watcher.
It is unlikely that the Touch will see anything more than a capacity upgrade in the near future. Its current, intentionally limited features are meant to delicately balance it between the iPod and iPhone lines and major changes to the Touch alone would almost certainly create feature imbalance. It does not appear that el Jobso wants to reinvent the Touch anytime soon. Too many PDA-like improvements that many on these forums yap in favor of could jeopardize iPhone sales. On the iPod front, what more can you do to the Touch aside from say a video download store? I wager that the Touch is kicking ass in its target market: Customers seeking an iPod with a bigger screen and Wi-Fi connectivity without the shackles of the iPhone and AT&T. (Sure the iPhone can be unlocked but the average consumer doesn't want to deal with that.)
However, if by "remastered" you mean minor capacity bump, I wouldn't be surprised to see that during the MW keynote.