Caley Thistle chairman Ross Morrison says the Highlanders have not shifted in their support for a 14-10-10-10 league reconstruction proposal.
A proposal for an expanded top flight is now the only option remaining, after plans lodged by Hearts and Rangers failed to get enough support from SPFL clubs.
Hearts owner Ann Budge had initially tabled a 14-14-14 proposal, while Rangers floated a 14-14-18 set up which would have seen the Ibrox club and Celtic represented by B teams in the bottom-tier.
All 42 clubs must now write to the SPFL by 10am on Monday to indicate whether they would support a change, which is expected would be permanent, ahead of a possible vote.
Should it be passed, Hearts would avoid relegation from the Premiership and Inverness would be promoted, having finished second in the Championship last term.
Attention has been drawn to other European leagues in recent days, with Waasland-Beveren’s relegation from the Belgian Pro League ruled illegal by competition law.
In France, the national court this week ruled that Toulouse and Amiens could not be relegated, following appeals by both clubs when the Ligue 1 season was cut short due to coronavirus.
The French league body has now been informed it must look at a fresh structure for next season, which would accommodate the two clubs.
Morrison says Caley Jags’ backing for the proposal currently on the table has not wavered since Scottish football was suspended three months ago.
Morrison said: “We are still behind 14-10-10-10, and we have been since March 14 when we discussed it at our board meeting.
“For Caley Thistle, nothing has changed. We have always been of the same thinking, that nobody should be financially hurt by Covid-19 if they didn’t have to be.
“We would therefore hope the teams would get behind the SPFL. We are just sitting and waiting on what the rest of the teams and the SPFL want to do, as things have changed so many times. We are ready for either or.”
Morrison says Inverness are trying to remain proactive amidst the ongoing uncertainty over which division they will be in next season.
Caley Jags have enjoyed a strong uptake on their new kit, while the club are also in talks to organise concerts at Caledonian Stadium next summer.
Morrison added: “We are in complete limbo just now but we are not going to sit on our hands and do nothing.
“We have had the best response ever to the strips. The pre-orders have been tremendous, the website crashed which
is how many people have been trying to buy them.
“We are looking at more concerts for next year because we lost them this year.
“We are negotiating just now and making offers for either a two-day or three-day weekend with some great acts.
“We are trying to make the foundation of the club more settled, to make it more financially viable.
“Covid-19 is something we can’t deal with. It’s an unpredictable thing, so we have just kept on going with what we can do.
“We are having to rely on other things other than football, as football is not giving us anything just now.
“We are all as positive as we can be around Caledonian Stadium.”