Anything is possible, but weighing out the probability of that happening and assigning a value to that, its really low compared to the benefits it still offers. There are a lot of data points that go into something like this. Newer cryptos are very new and we've seen flaws and the like time and time again. 

Mind you, I have a very diverse portfolio of cryptos but at the same time I think Bitcoin will always be the universal. 

I am biased of course, so take my words with a grain of salt.