ITV means new IPOD
As it has been made quite clear within this thread, Jobs has mentioned the iminent release of the Itv. This IMHO is a big reason to expect a 6g ipod. I dunno if it will be full screen or touch screen, but I think Itv means a lot more than just a new product.
Itv being introduced causes a forced domino affect of things to be introduced at macworld.
1st. If Jobs is introducing an Itv, he must have more movie viewing contractual agreements, otherwise the Itv would serve little purpose. He made it quite clear using repeated showings of movies and shows using the Itv at the september event. If there is an Itv, Jobs must have more movie studios.
Plus: It would make perfect sense that more movie studios hop on to Itunes now, because previous rumors indicated they didn't want to affect the dvd buying holiday season. Thus, rumors indicated they would join after Christmas.
2nd. One delay on the Ipod Video 6g was the fact that Jobs was waiting for more people to hop on the itunes movies store. He couldn't unveil it in September, because only disney hopped on. Thus, he delayed consumers with some minor screen and hard drive upgrades. This is still a 5g ipod. In the current market, these Ipods are getting technologically behind. Apple is due for a new ipod. Jobs just bought some time.