I think it is going to be important for large stakeholders to be able to make a partial weighted vote (via a code enhancement/future fork). Currently the only way to vote proposals up and down is with the boolean approve. But this means that when a large stakeholder changes a vote it may have unintended consequences (for example moving a refund proposal above other higher "good" proposals in addition to the one intended to be cut off), or alternately not vote. Splitting stake allows for more granularity, but splitting stake should not be needed and it is generally unintended that splitting conveys an advantage.