yes most will go Kaboom. Market is flooded with coins. Some must drown. Unless you are a fire ant.
Correct, we are in a huge speculation phase. Most coins outside the top 10 in market cap (and honestly, even a handful inside as well) are pure speculation plays, and don't currently offer any huge value propositions.
What we will see in the future - maybe soon - is a small group of coins break away and gain even more market share, while the majority of these multi-hundred million dollar market cap coins fall back into the "penny stock" valuations where they really should be. I think there is still money to be made by selecting a decent top ~100 coin, waiting for a pump and then dumping your coins. But unless it's BTC/ETH/XMR and maybe one or two others, I'm not holding for the long term.
This is really the risk on engaging on any coins in the market on which most of the price is just being hyped up specially to those coins who do have high marketcaps and as expected prices would really go to bottom soon because hype will surely gone and regarding on the image i do really laugh at it.lol. Altcoins with low supply usually have the chances of exploding up since prices can easily be manipulated or pumped up or dump down.