Arsenal currently have a difference of 8 points with Manchester city. and what makes Manchester city able to catch up with Arsenal is because Man city has one match postponed. but I personally am pretty sure Arsenal will continue to maintain their advantage at the top of the standings. and the next game against Leeds I think there will be no problem with that game because Arsenal should be able to win that game pretty easily. but Man City has a pretty tense game against Liverpool. as we know Liverpool can sometimes surprise a strong team.
It's a shame that Arsenal lost that game against Manchester City in February. If they had won it, I think they could slowly start preparations for the party as the new champions. This way they Arsenal needs to wait to celebrate. If City wins that postponed game, they will be 5 points behind Arsenal which is still achievable.