Expect ethereum to be 250 + usd on or before 8th MARCH 2019 
If this would happen than the whole market cap should be above 230B and BTC have to cross $5k otherwise it is not possible in short term. No doubt ETH will get explode and this range is looking possible in next few weeks.
It's possible even without a BTC move but I don't believe that it will happen, BTC can lose so much dominance because every alt will pump if ETH will make such move