I see this sentiment a lot here; something along the lines of "there's too much left to happen, and one book isn't enough to tell it."
Aside from the fallacy of incredulity here, I think that - on the contrary - there's plenty of time to finish the story.
There are two bits of reasoning here:
Secondly: The books are huge! Both of them are entire Lord of the Rings saga length books. Do people seriously think that a wordcount big enough Lord of the Rings is not long enough to tell us what happens? We're already at the precipice of disaster, and it just needs a nudge, and you really think it will take more than Lord of the Rings to tell us about that nudge? Really? "But he has to find the place and set up the inn." Not so hard: "With no options left to me, and no-one to turn to I changed my name and ran to the first village I found. I used some the money I had to buy a place and set up an inn, thinking of the innkeeper who was kind to me on my last day Tarbean. And that is where you find me now." Done.
I'm sure there's a lot more of the world to be seen after DoS, but there's really plenty of time to finish Kote's story.