The most interesting part is that Iconomi keeps growing its funds due to the BTC rise and next week when LSK pumps it will go even higher. Fun times ahead on all fronts here 
It would be interesting if they promised to pay dividends in USD.
Otherwise it all depends on BTC/ETH price, and the prices of other cryptos they (will) own.
I don't see any problem here.
Yup, 1BTC worth of ETH is still 1BTC no matter the ETH price.