Information is sparse, to me anyway, but there are plans for electoral reform in Mongolia.
The reform seems to be motivated from the problems associated with the last legislative election in 2008. The Mongolian People’s Revolutionary Party (now just the Mongolian People’s Party – MPP) won virtually all the seats because of the majoritarian nature of the system. There was conflict, following which the opposition Democratic Party was, in effect, given some seats to make the situation less imbalanced. The two parties also formed a grand coalition.
The UB Post is reporting that decision makers are proposing an MMP system. However, there is disagreement between the two main parties as to the split between majoritarian seats and proportional seats. Moreover, the MPP has proposed putting the proposed system to a public vote. There has never been such a vote in Mongolia.