Manchester United can still theoretically beat City to fourth place in the Barclays Premier League after their home game against Bournemouth was postponed because of a security alert at Old Trafford.
"We kept our togetherness and that is part of the DNA of this club", said Wenger, who led his team into the Champions League for the 19th consecutive season.
That result set in motion a stumbling end to City's title tilt in the weeks after the announcement that Guardiola would succeed Pellegrini when he left Bayern Munich.
While Pellegrini seeks fresh employment, Swansea manager Francesco Guidolin, fresh from being given an extended deal, will sit down for talks with club chairman Huw Jenkins in a bid to build on a 12th-place finish.
The record for a Premier League win is Manchester United's own 9-0 victory over Ipswich Town in March 1995, which would need to be doubled and then some by this side.
Arsenal's Mesut Ozil in action during Barclays Premier League game against Manchester City at Emirates Stadium in London on Monday, December 21, 2015.
Southampton now sit between City and United in fifth place after justifying short odds with a 4-1 home win over Crystal Palace while their Europa League rivals West Ham were defeated 2-1 by Stoke.
Pellegrini, whose three-year spell at Eastlands has seen the club win the Premier League title once and two League Cups, saw City live dangerously at times before he was able to sign off with the point needed to nearly certainly beat Manchester United to the Premier League's fourth Champions League qualifying spot.
"We kept fighting until the end".
"It's not easy to finish a cycle in this club, a club where I was very happy, where I always felt the support of the fans during the three seasons".
Everton looked revitalised by the sacking of much-maligned manager Roberto Martinez as they defeated relegated Norwich City 3-0 at Goodison Park thanks to goals from James McCarthy, Leighton Baines with a penalty and Kevin Mirallas.
"I haven't spoken to Guardiola, I don't think that we need to speak", Pellegrini said.
Manchester City manager Manuel Pellegrini told his players not to be distracted by events at Old Trafford before their game at Swansea kicked-off.
But the fact is that by only taking fourth place, the Blues will still face a potential banana skin as they will be in the August play-offs for the first time.