Here is an interesting article I found in Kenya.
https://citizentv.co.ke/sports/kipchoge-eyes-london-hat-trick-but-wont-chase-record-189810/
”Preparations are going on well. Currently am working on strength and speed. I will not be going for the world record but I will run a good race with a lot of hopes,” said the 2016 Rio Olympics Games marathon champion.
Later in the article he says, "Soon, I shall run a world record marathon. That is the only thing missing in my CV,”