However, Gilmour insists the board of directors at St Mirren have not signed up to anything – and their only commitment is to examine the details with a fine toothcomb.
Speaking exclusively to Express Sports, Gilmour said: “It’s worth pointing out that, contrary to reports, the 12 SPL clubs have not signed up to anything.
“All we have given is a commitment to fully investigate the proposals for league reconstruction.
“We won’t be voting for anything until we know what the implications are.
“There is no doubt there is some merit in what is being proposed but we need to look at things from every angle because these proposals could have a direct impact on St Mirren Football Club in the future.”
Under the proposals, three new divisions – the Premier, the Championship and the National League – would be formed.
After 22 games, in which each of the teams has played each other home and away, the top two divisions would split into three leagues of eight.
The top eight clubs would then meet a further two times to fight it out for the title and European places, while the bottom four clubs in the Premier would play against the top four from the Championship to contest promotion and relegation in and out of the Premier.
Each of these eight teams would have their points total re-set to zero before meeting each other home and away.
The bottom eight clubs in the Championship would play each other to decide who drops into the National League.
For the plans to be approved, 11 of the 12 SPL clubs and 23 of the 30 SFL clubs must vote in favour.
Gilmour admits the current proposals mean the idea of the SPL being expanded to 16 teams is dead in the water.
He said: “We are not going to get a 16-team SPL now.
“The big clubs just won’t vote for it.
“Now we have an alternative and it’s important we look at it properly.”