Minereum (MNE), self mining coin based on ethereums smart contracts, extremely low supply and great development team make this a very interesting coin with an very high potential. Right now it's trading at around 7$, I can see it at 50$ by the end of this year, 500$ by 2020 (this would be a marketcap of 225 million $, which is peanuts compared to ethers 25 billion right now.
Digibyte (DGB), very fast coin with a good development team and some great implications, plus it targets the online gaming world which is a growing market. I can see this coin reach 0.5$ by the end of this year, 2$ by 2020 (this would be a marketcap of around 16 billion)
New Economic Movement (XEM), highly scalable, very fast coin, can do everything bitcoin and ethereum can do, only a lot faster. It's an absolute mystery why this coin is still so undervalued. I predict 2$ by the end of this year, 10$ by 2020 (this would be a marketcap of around 90 billion, which is the only reason why I don't see it growing above 10$ per coin)
Ripple (XRP), fastest coin today, it has a lot of backers, google being one of them. I predict this coin to reach 0.75$ by the end of this year, and around 2$ by 2020. This is only due to it's sheer volume, as it would mean a marketcap of 200 billion.
Siacoin (SC), given it's ability to completely replace dropbox, I predict a price of 0.05$ by the end of this year, and around 1$ by 2020.
I just moved all my XRP over into XEM thanks to your analysis. From a speculative point of view there is no point in holding on to XRP if NEM is 1) cheaper and 2) has a higher projected price. Unless you like the project of course. But I don't like the centralized aspect of XRP anyway.
And I agree that SC has huge growth potential. That's why I won't touch them for a while and let the market determine its true value.