What is (and has been) the biggest problem for CSC? Coin hoppers and autosell. One would expect that at current market prices the mining of CSC would reduce substantially as it is no longer profitable to mine CSC. However even at these low prices there is still some 1-2 Ghash of mining power directed at CSC. Most of those coins are sold on autosell and thus about 15.000 - 20.000 coins are dropped at the market every day. If we want to reduce that the only way is cutting the block reward. Doing so would protect current coin holders value in my opinion. All kind of halving schemes are worthless in my opinion and best thing to do is reduce it to a final 1 CSC level asap .... i still have not heard any mayor issues against that aside from cartmans comments about network hashing speed and i think that will be solved automatically IF the coin takes off in the future, .... if not we have no issue anyway 
Is this really a problem though? If someone chooses to sell their coins let them. Miners are simply getting paid at a discount for providing services to the CSC blockchain. People who see value in acquiring CSC will be able to accumulate more at a reduced price. By reducing the reward to 1 CSC you are immediately and artificially increasing the value for current coin holders...myself included...but is that what we want? In the end unless services start to materialize it wont matter.
It also set's a bad precedence in manipulating the currency....just food for thought. I am not opposed to doing so but lets be clear about what is being done and why.
As a business owner I would be hesitant to utilize a currency that is manipulated in the way CSC has been. It already has gone through at least one changing of the rules on top of a "hostile" takeover so who's to say it wont again. I should probably not speak up as I don't want to spook any potential investors or business plans.
For example...one could release a client that increases the reward to 100 and provide enough hashing power and nodes to make the change stick. That is the danger of a low hash rate...anyone can come in convinced enough people to agree and cause a fork if they so desired...it's how @casinocoin gained ownership from transcoder....but it is not a problem with just CSC...all coins with a low hashrate are in danger of such a thing.
Another way to stop the dumping is for the buy walls to be taken down. Let the price decrease to a point where the miners simply move on to something else. Of course that also introduces the low hashrate problem...which could be solved with AuxPOW.
I would say....decide on making whatever changes once and for all. Weigh the benefits of staying with a 30 second blocktime (bloat) vs 60 seconds. Consider whatever diff algo is necessary...figure out if AuxPOW is the way to go to ensure the blockchain is secure with enough hashing power to thwart an attack (it will happen if the coin starts to see real value), decide on the mining reward structure, etc.
Zero. (only if CSC=$1USD, then maybe...)