Well here is my wish list for the 6D MKII its not long:
Keep wishing, my guess is that the current 6d will stay around for quite a while like it is. The longer Canon sells it, the more profit they make after getting back their r&d money and I guess longer production also means lower production price. If anything, they'll lower the 6d1's price further instead of replacing it, the cheap construction means it's meant to be flexible for further discounts.
And the thing keeps selling and will continue to do so as it's essentially a good sensor in something build around it that doesn't matter too much. Unless there is a serious upgrade in sensor tech, imho Canon won't replace it. And if they do a leap in tech, they'll first put it into their flagship cameras (7d, 1d, 5d), so until it trickles down to the 6d it'll be quite a while.
The last possibility for pressure to upgrade 6d1->6d2 would be Nikon or Sony, but Canon has demonstrated that they don't really care about the competition's specs as long as they've got a similarly priced offer at all: Many people are tied to Canon by their gear or years of usability experience with this system.