Constrained Classical Trajectory Bundles with Fixed Symplectic Area

We introduce finite-$N$ dynamics for a bundle of labeled classical trajectories under a constraint fixing the symplectic-area scale of its covariance. The constraint forces have zero bundle-averaged power, and finite bundles may be non-Gaussian. If the initial distributions have a Gaussian large-$N$ limit, the limiting density remains Gaussian. With matched initial data and the scale set to $\mathrm{\hslash }\mathrm{/}2$, the limiting dynamics coincides with variational Gaussian wave-packet dynamics for the full phase-space density. $N$ counts trajectories, not orders in a Moyal or $\mathrm{\hslash }$ expansion.