With the club set to see new commercial deals kick in following their £390million move to Emirates Stadium and with plenty of cash in reserve, resources which were further boosted by last summer's sale of captain Robin van Persie to Manchester United, the Frenchman insists the Gunners will be able to invest heavily in the playing staff.
"My plan is to keep all of the players we have and then to add maybe, if possible, two new players to the squad. We will spend big (again) because we had restricted finances because we had built the stadium and had to pay that back," Wenger said in an interview with Al Jazeera Sport recorded before the 2-0 Manchester City defeat and broadcast on Talksport this morning.
"You look at any club who has done that, and they have gone down (in performance). We stayed at the top level, yes without winning the Premier League, but we were always at the top level.
"Now we have come out in a much stronger position financial again, so we can spend.
"But our way is a bit like Barcelona as well, to produce the core of the team from inside and add from outside the players who give really a plus."
He added: "The biggest challenge so far is to convince people we have a good team, that we have good quality and that we lead the club in the right way, because many people doubt that," Wenger continued.
"I am convinced this team has a fantastic mentality, fantastic quality and with the right level of confidence, if we can create the momentum, we can be a positive surprise until the end of the season."