As pressing as the need may be to resolve this, I don't think the company will dismiss any strikers who have participated in industrial action under the
current ballot.
However, if there is a ballot for further industrial action, I expect some shots across the bows from BA as to whether CC have protection from unfair dismissal. If the company has given clear written warnings that they don't think that clock has been reset on the 12 week protection period, then they may feel justified in dismissing strikers (with all the adverse
PR that will involve) on the basis they have an albeit untested argument for doing so.