Well we cant tell yet on when ETH and LTC catch up to BTC, But as of now its only BTC are smoothly increasing the price. We hope some coins also will be join of BTC increasing the price because that we waiting for to increasing all of coins the prices.
Now only Bitcoin has increased and other pennies are having very bad prices in the last few days. If Bitcoin continues to rise, then altcoin will probably have a very low value this year. I hope that Bitcoin in the next few days has a slight and stable adjustment at $6200 because if Bitcoin doesn't have a lot of volatility, then surely all leading pennies will be able to raise prices higher. Now is not a good time to invest and we should wait patiently for the Bitcoin price to return to $6200