In my opinion, Hawken should follow the model set by EVE, where the player's choices are limited not by a predefined class, but by their chosen platform's power output and CPU capacity and the equipment they have available.
We could have a myriad different parts and items, from experimental legs and customized thrusters to armour and weapons with special modifiers that would be acquired through combat as salvage. You'd have to fit all of these custom items into a mech frame of your choosing, different frames having advantages such as base HP, special abilities and weight/acceleration. Lighter mechs would have to sacrifice a lot of peripherals to power heavy weapons such as a the vulcan cannon, perhaps even to the extreme of having to disable thrusters. We could have a million different builds that let players truly personalize their mech, instead of today's cookie-cutter classes.
Edited by Sueco, October 30 2012 - 01:33 PM.