I have been wondering if Traveling could be used to go somewhere else than we know. If it is possible to Travel to Tel'aran'rhiod through a gateway, is it also possible to Travel to other worlds like the one Rand enters in the Portal Stone? Also, is it possible to enter the Ways through a gateway instead of a Waygate? I know there is no point in doing the latter because if you can Travel you won't need the Ways.
Just something to think about.