Arsenal's ambition is of course about 3 points at the Etihad and leading the standings, but Manchester City's ambition is to try to defend their title and win every game. Arsenal will lead the standings if they win, but if Manchester City wins then Liverpool will be in the lead, especially if Liverpool can beat Brighton.
Arsenal huge ambition for beating Manchester City in front of their fans and has opportunity for premier league trophy this season, but Manchester City won't loss any point yet when playing on their home with one point left from Arsenal and Liverpool has chance return to 1st or 2nd place depend on Liverpool match result.
Liverpool can beat Brighton Albion and Manchester City or Arsenal don't make match result draw, its give advantage for Liverpool if can win from Brighton has two points from Arsenal and three points from Manchester City.
Premier League format with goal difference and not matter with lead head to head home and away match, Liverpool lack goal productivities must scoring many goals on every matches left.