I also think that Chelsea will not miss the first place till the end, only 11 matches left, they showed stable performance and they deserve to be the champion this year, although two difficult matches are waiting for them against Man City and Man United, but with 10 points difference, no change will happen.
Nothing will change unless by any miracle they keep losing the remaining matches which is very impossible. For now it will be great to bet for the top scorer as diego costa still stand a good chance to win the top scorer spot. Chelsea is on the top spot currently so it should be easy as well for him to keep on scoring