If we observe the charts, there is always a trend of price increase in all (or probably most if not all) of altcoin or everything that has value everytime the year ends. Now if one do want to do trading would it be best to do it per year? and if one does this, is there a way to identify which altcoin would yield the greatest price increase so that at the start of the year you may have the time to prepare for it?
That is really hard to say. But i believe you identified an interesting pattern here.
I personally need to find better ways to make money to invest still so i can do it a lot more. I'm more of a holder than trader though. Mid-term investments looks like long-term in a lot of aspects and that is a really good thing.
The best way i can think of is watching the behavior of each coin per year at different times of the year. That will certainly give you a very good clue about it's performance. I prefer to stick with the main ones though.