There's quite a cluster of objectors in my part of the world from adjoining constituencies: Chope, Swayne, Ellwood, Drax.
What's interesting about this list is that it includes a very large number of Tory MPs who have got on my wick in the past, mostly over right-wing approaches to law and order, welfare, the economy and/or support for Brexit. Chope, Drax, Rosindell, Redwood, Duncan Smith, Fox, Francois, Bone, Bridgen and Duncan Smith stand out amongst that list.
Steve Brine (who has also got on my wick, but for different reasons - swinging one way then the other repeatedly over support or otherwise for Brexit) is an interesting one and something of a contrast to the list above.
Plan B isn't too extreme (though I do object to vaccine passports on civil liberties grounds) but its possible successors are, so I think there is a good argument for dissent by MPs at this time otherwise the government might try to push through a full-on lockdown two or three weeks later.