You are calculating the 50% with the assumption that 25% will unclaimed stakes. That nothing but an assumption. NXT had that many so what ?
How many people out of 2800 have claimed token on Nxt AE so far? I don't think you have reached even close to 1000 after almost a month. I know some don't want AE tokens, but given you couldn't even reach 1000 says a lot about what is going to happen after the launch
What if the number is even greater than 25?
We should then officially rename Nem to ripple 2.0