pfSense

Provide a mechanism during initial interface assignment to create LAGs, not just VLANs. In a moderately complex environment, LAG+VLAN is a good way to increase bandwidth and reliability simultaneously, and setting up LAG across all interfaces on a box is a very time-consuming and error-prone manual process, and is extremely difficult to accomplish in some environments due to network topology constraints (i.e. WAN interface must always exist).
Allowing LAGs to be setup during initial interface assignment, just like VLANs, would turn this from a large problem into a very small problem.
Not sure what category this belongs in.
Hoping 2.1 isn't a ridiculously optimistic target version :-).