Provisional Formula One calendars are usually released around this time of the year but 2014 is still well up in the air. Only recently India was dropped, Austria was added and, as Pitpass' business editor Christian Sylt revealed, New Jersey will not be joining as planned according to boss Bernie Ecclestone.

One addition which has gone quiet for a while is Mexico but that has all changed as Ecclestone told Sylt on Friday that a decision on the Mexican Grand Prix will come in the next two weeks. Pitpass' sources say that the race will almost certainly go ahead next year and it will be held in Mexico City.

Writing in American motoring magazine Autoweek, Sylt quoted Ecclestone saying that he "should know within a couple of weeks about Mexico," and that he is "going to try to make it happen." The news was published on the morning of the Belgian Grand Prix and was soon followed up in the paddock. Asked on the Spa grid about whether the race will take place next year, the reply was: "Could be. Everything is possible with me, you know that."

Another website wrote up the news saying that "Mexico is poised to make a surprise return to the Formula 1 calendar in 2014." If it had done its research it wouldn't have been quite so surprised as back in February Pitpass revealed that Mexico City is in pole position to become the new home of the Mexican Grand Prix from next year.

Ecclestone told us then that "Mexico City is a better place to hold the race than Cancun. In more or less any city around the world you could ask people ‘where is Mexico City?' and they would say Mexico. If you said to somebody where is Cancun they would say I don't know."

Mexico City also happens to have a historic track in the form of the Autodromo Hermanos Rodriguez which last hosted an F1 race in 1992 (pictured). The plan to revive the race there has the backing of an all-star management team which is led by two key figures.

The first is Tavo Hellmund the creator and mastermind of the F1 USGP and the Circuit of the Americas in Austin. His counterpart in Mexico is Alejandro Soberon, chief executive of the world's third largest live entertainment company CIE. The team members include Carlos Slim Domit who sits on the FIA's decision-making body the Senate and is son of the world's richest man Carlos Slim, George Gonzalez – the chief executive of CIE subsidiary Ocesa, and Federico Alaman, president of motorsports for Ocesa.

A number of other driving forces mean that a race in Mexico is a question of when not if. This year there are two Mexican drivers on the F1 grid in the form of Esteban Gutierrez at Sauber and McLaren's Sergio Perez who have both been bankrolled by Slim as they moved up the ranks of motorsport. There has also been recent change in Mexico as the country got a dynamic new president in December last year when 47 year-old Enrique Pena Nieto took office.

Sylt says that, crucially, the Mexican Grand Prix is fully funded unlike the race planned for New Jersey. So where does that leave us with the 2014 calendar? The loss of India was balanced out by the addition of Austria which would keep the number of races stable at 19 in 2014 if it wasn't for the addition of the Russian Grand Prix in Sochi.

F1's contracts with the teams stipulate that majority consent from Ferrari, McLaren and Red Bull Racing is required if there are more than 20 races in a season. If Mexico joins but the brakes stay on New Jersey that would give us 21 races in 2014.

However, there have been plenty of reports that the Korean Grand Prix may be dropped next year as it has racked up huge losses. This means that Mexico would take the total just to the limit of 20. It's almost as if Ecclestone planned it that way...