I don't expect them to mandate it. Wasn't the last two boosters available to you if you wanted it? I can't say I've been forced to get any of the booster shots. If they do ask us to take another booster at some point, I don't see it being a mandate that it'd be required.
I think things have died down a bit in regards to covid, in that we're ahead of the problem now. Not as many people are dying from it, and I feel like if we are asked to take another booster, it wouldn't be a requirement. And even if it is, I don't see places forcing you to do it.