I have bought some Ethereum prior to the whole fork thing, from what I have heard is that my Ethereum is supposed to hold Ethereum Classic. Let's say I have 10 Ether on a myethereumwallet. Can I hold those until 2018 and THEN get my ETC? Is there a limited time to the usage of the split function? I hold some DAO as well, I have not turned those into Ethereum, also bought before the fork. Can I hold DAO for 2 years and THEN turn to Ethereum?