If you look at the price chart of any coin, then you can see the periods of rise and fall in price. What happens with each coin in real time is difficult to determine whether it will be a long rise or a short, long fall or not. This is usually said after some time after the events and give an assessment.
true, each coin is different so we cannot say for sure whether it will continue to rise or not.
all depends on the coin itself because if the coin is potential enough and the market supports it, it is likely that it will continue to rise and vice versa.