As most of the season ticket holders are Well Society members, I'm sure they could press the issue if it ever happened. Then you would need a fair system to select who gets in, of course. How many from a family, any age restrictions to protect the elderly fans etc.
I'd prefer the club didn't intentionally go out of their way to lose money in these circumstances, but if the majority decide that is what they want to do, then so be it.
And I say all of this as someone who has been 100% in favour of opening grounds as soon as possible. I just don't think it makes sense for clubs like ours until the numbers involved can be larger.