I've mentioned this a handful of times before, but one thing i would love to see, is to have all the extra redundant weight in IS equipment serve a purpose.
Kinda taking the fact that IS tech has primarily been the same rugged equipment for nearly 300 years. 300 years of "Ford Tough" as it were. Meanwhile the clans have been making headway in high performance parts and light weight materials and all that. but as anyone knows, high performance is not exactly high endurance.
So if we ever have cbt style crit damage or component failure, i think part of the IS's advantage, is that some of their gear can take more of a beating before they go offline. The overall result being that critically injured IS mechs would likely have a higher percentage of weapons and gear remaining than a similarly damaged clan mech.
The idea i'm trying to convey is akin to Ford vs Ferrari, AK family of rifles vs AR-15 family of rifles, Clydesdale horse vs Arabian horse.
This would only apply to component health though, armor hitpoints would likely still be in the clanner's favor, IS stuff would just keep it together better at low health than clan stuff.
so lets say an IS standard PPC has 100 hp, the clan ER PPC has 70. IS med laser has 40 hp, clan er med has 30. etc etc