There is obviously a non zero chance they move
It's as close to 0, as 0 can be.
MLB does not want teams moving. They want Tampa Bay and Oakland resolved before anything else, and if teams are going to move... it's going to be them.
OPACY is still revered. O's history still revered. And dollars and cents wise, the MD Stadium Authority / State of Maryland has made clear they will do what's necessary to upkeep OPACY. With that backing, MLB isn't going to say... "Yeah, sure move the team."
MLB will approve the sale... if it isn't the Angelos family, it will be a handpicked group that MLB subtly gives a nod to.
As The Sun article pointed out, Lucchino was approached in '20. You can expect if a sale happens, he is likely involved as the voice. I also suspect we again hear Bill Miller's name.
If we want to say there is always a chance, and if there is a chance, by definition a % exists... then fine... 0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001