My brain is shot after all or the moving pieces of displacements, re-do, displacements, vacancies.

SFO 756 displaced to ORD 756, not activated but showing as starting position but still
staffed SFO 756. Can I bid EWR 777 and not have a freeze? SFO 756 reopens in 6 months for example, if I have a freeze will grandfather rights be an option to get back to SFO 756?

I read and re-read this stuff by nothing seems to stick. Maybe time to dry out? Thanks for anyone who can clarify what my options would be.