The two elephants will be meeting and is actually going to be the most interesting match on that weekend because the match will determine the club that would become the second or the first position of the premier League because if Arsenal eventually wins Manchester City then we can say that they have the upper chance of wining the premier league because they will beat Liverpool in terms of there points while Manchester City will remain on the third position, although I'm only assuming because nothing is certain yet but with the look of things this match will be nothing like Manchester City and Liverpool because I believe there would be wining on this match.
Yup, this is the last time this season when any of the top 3 teams will play with each other, so that match has a lot of weight.
But you're kind of assuming that all 3 teams will win all the remaining games, but I don't think that's very likely to happen. i.e. all 3 will be playing both Aston Villa and Tottenham (4th and 5th in the league) who are also quite tough opponents.
As for the City Vs Arsenal - chances are currently estimated at:
City: 52%
Draw: 25%
Arsenal: 23%
It's true that as long as we haven't faced other strong teams in the big six, I think the road will not be as easy as imagined. Moreover, Aston Villa or Spurs could make things difficult for these 3 teams. They have the same fighting spirit because they want to secure the champions league zone and it is impossible to provide a way for everyone to get full points when facing each other. Manchester city is still a team with a big chance and maybe we will see them defend the title.