[tsavo]

my feeling
excluding the price, there are following areas to deal with:

Maneuverability:
--speed
--turning rate
-- there are some upgrades, but all according to %, which is stupid for further development

Durability
--shield
--shield regeneration
--hull
--hull repair
-- there are good upgrades, but lack other parameters for futehr development

Fire power
--Main Gun
--AA(anti-attacker) turret
---accuracy/hit effect/range/rate of fire/warhead speed
---kinetic warheads need a total upgrade, but may be too big a task.
--MS launched Missiles might destroy the total balance?
--may be extra droid pod?

There are one major area not covered:
Power Generator
-Power core
--the total amount of energy all systems can use
--what ever tech they are using, no refueling need
-Charger
--some extra energy reserve for emergency

--If we can add Power core and Charger to Mothership, then all the systems (propelling/sheild/repair /guns/radar/auto-pilot) can be power sensitive, then u can balance everything accordingly, and build speciallized versions.
--eg. laser can still be the most deadly weapon, only they eat a big part of energy.
--same thing can apply to fighters
--it will be a new game, so, not likely to happen

Auxilary system
--radar
--missile defence
--laser proof
--auto-pilot
---speciall designed for specific mothership?
--basically good as they are