Eth will increase as long as eth2.0 is in the pipeline. If eth get its price of gas sorted out then it might replace bitcoin. Cardano is a big competitor of ethereum. In long run Eth will hit 3000$ for sure. But in short term 1500+ is a bonus in month time.
Ethereum has a problem in transaction fees if they can solve that in ETH 2.0 then there might be possible more increase in price. but if not many developers will move to other project to use for creating smart contract tokens. Just this day ethereum asked too much fees more than bitcoin transaction asked. I hear that you need to pay $50 fees for just single transferring tokens to other wallet and its not IMHO.