Since my investment will last, at least, one year, I'm absolutely sure it will go up.
In the short term, we can see lower prices than now, because some people are spreading FUD about the bounties. This point could be true, or could be not. Some people have sold around this prices or even higher, in order to buy cheaper later.
For them, the more people selling, the better. That's why we'll see lots of posts inviting to sell in order to buy cheaper. And probably they are right, because people hugs FUD with passion.
In my case, I simply don't care. It's a long time investment for me, as it was RLC, for instance, and I'm absolutly calm and totally sure that I'll earn good profits in next months or a year.

In short, that's your choice:  You can earn money selling now and buying cheaper, but risking to loose the train, or you can forget about your tokens for some months, and earn money in the future.
At this point, I prefer waiting riding the train, but that's just my opinion.

I'm enjoying the IEXEC-RLC rise right now.
For long term investments in 2018, I've got UTRUST and Quantstamp, for now, and looking for one or two more for long term, as well.

Good luck with your choice.
I'll stay in    
Got a comfortable seat.