Quote Originally Posted by [cF]Adherbal
[1] RTW doesnt have a combat penalty for disorganised formations
[2] RTW doesnt have a combat penalty for placing units on top of eachother
[3] RTW doesnt have a combat penalty for units that are flanked or surrounded
[4] RTW doesnt have a combat penalty for loose formation
[5] RTW doesnt have a combat bonus for wedge formation
AFAIK, we did lose [2] moving from MTW to RTW but I think you are being a little misleading on the other points.

Re [1] There is no "disorganised" state per se in TW. But
(a) a strung out formation - eg one pursuing a routing enemy - will tend to do worse than an ordered one, because its men will get into combat piecemeal with a more concentrated opponent
(b) a stationary braced formation can cope with a cavalry charge better than a "disorganised" one.
(3) disorganisation severely hampers phalanxes
(4) the "hold formation" button captures some aspects of being in proper formation - your defence is higher, but your attack is reduced

Re [3] This is wrong because:
(a) the morale penalties to being flanked etc are very severe
(b) individual soldiers have facing and cutting at one's flank or back does increase kill chances (and stops your target striking back until they turn about)

Re [4] Does there need to be a "penalty"? In loose formation, you will get fewer men into contact with an enemy and hence kill less (be killed more) in melee.

Re [5] Are you sure of this? In STW and MTW, wedge raised attack and lowered defence. I would assume it's the same in RTW.