Here is one of the alts that has caught my attention recently- it is one of the few alt coins still hanging on to a clear trend-line, and is building up volume at these levels. The REP/BTC pair also trades quite nicely, and there has been some positive news developments surrounding this project recently, which could bolster a come back.
I cannot say exactly where the 5k BTC senarion would land this crypto, my guess is that it would get crushed pretty hard. But in the bullish crypto case, I can see this emerge as an out-performer.