Don't see us doing anything this month and I have to say I think it's really risky being as it's a world cup year and how tricky players seem to find bedding into the system it almost commits us to pretty much the same team until the summer of 2019.
As others have alluded to I think it's fair to say Kompany is done and after a world cup with Belgium trying to get 2 games a week out of his body, only the most reckless would count on him at all next season.
Clearly our rivals will look to strengthen this window so the question becomes will they strengthen enough to catch us, this season it's doubtful and then in the summer its certainly not out of the question that 4 of our rivals will be changing managers (Klopp is the one that I think won't be moving or being pushed). However, anyone coming in will have the World Cup issue too, so maybe the whole sticking with what you have got and not changing anything is the way to go, if it's not there will be one hell of an inquest...