Ethereum cross 1k$ within this year? Is it possible ? Could be, could be. But that also mean Bitcoin could cross $13,000. Technically speaking both could top out at that price levels before re-testing the lower support prices again. It could be a reaction to the extended bear market where there was zero rebounds.
With regards to network competition such as Tron and Binance coin, nothing can beat ETH's brain pool, it even has more devs than Bitcoin has.
With stability in the market it might be possible but I doubt it very much.
Maybe it will peak at $300-$400 then stabilise before January 2020 but I think $1000 might be a bridge too far.
ETH not moving as good as bitcoin is doing, but when bitcoin is on a big run, that $1,000 could possibly happen this year.
The past trends would say bitcoin dictated the movement of altcoins and bitcoin help this market to grow by attracting new investors.
FOMO could happen again, and investors will not only see bitcoin as a choice but altcoins as well and who would not notice ETH which is the top 1 in altcoins market.