BTC will have been stronger by the end of the year, but I'm not sure if other cryptos will follow the trend.
Anyway you can follow the statistics on cryptocurrency, subscribe to their respective communities, check coin360 daily.
I suggest Litecoin and XRP.
Out of thousands of crypto coins we have few best recommended coins for which the market is demanding and have high values due to this demand. The investment of these coins will have a huge profit at the end and will payoff when it comes to bull market and you sell it on high price is what other traders did and millionaires right now.
Bitcoin is stronger each year, by the end of this year we will have some higher price, but I don`t think that we will see bull run this year, for that we need to be more patient. From other coins, and there are thousands, many will fail, huge profit can happen only if you select right investments. Which one are this coins that have potentially great future you didn`t said, nobody can say exactly which ones, its on us to do a research and to invest in what we think its the best, each of us have some picks, we all have our hopes, but future will show who made good choices and who didn`t, I say diversify, like that we have more chances to make that huge profits in few years.