from what I understand is that a fork will follow and a new wallet will have to be out. Trollbyfire has been running test that he quoted the other days so it could be anytime. But that's just my opinion and don't want to start the rumour mill going lol . 
this is what trollbyfire said the other day
LitecoinDark v1.1.2 (released Wednesday) DOES NOT contain hard fork code. Has not, and will never. This means until I push the next update, there will be no reward drop.
LitecoinDark v1.2.2 (to be released tonight hopefully unless something dire happens) DOES contain hard fork code and will cause the block reward to drop.
I have not stated anywhere a target block or when the drop will occur. - This information will be outlined clearly when 1.2.2 is released.
If reward drops but hashrate drops too, then it will not have any effect on the price. I remember Klondike KDC, they also drop the reward hard, and it was the end of the coin.
thats why i realy think we need POS by then, but as mentioned above, that might be the case
