I think we need to calm down a bit on that. We've just beaten an abject West Ham team - in decent style it must be said - a team so bad that they've now played four games against us in under two years and had about two clear cut chances across six hours of football. As such, it doesn't change a great deal. United have a better run in than us and a bigger squad, plus we have no opportunity to directly take points off them. Fifth isn't even guaranteed anything yet regarding the CL and we're quite a way behind Chelsea. Leicester are as good as out of sight.
Securing European football of any kind is absolutely the priority at the moment, though there's nothing wrong with dreaming about being in the premier competition.