Will the tickets go lower than this?
There is no magic, no trick, no way for anyone to know. Ticket prices go up and down every nanosecond, sometimes dramatically so. There is no human-understandable logic to pricing, nor any way to know what prices will do in the future.
Most folks have found that the best way to know if the price you see is a good one or not is to watch prices carefully over an extended period, but even that's more of an art than a science.
If you see a price that you're comfortable with, buy it, and move on to worrying about other things.
I must add: IMHO anyone who buys a ticket without regard to any other factor besides the lowest price deserves whatever experience they get. Many otherwise sensible folks, who would never in a million years shop for a car with the lowest price being the only thing they consider, then run out and shop for a flight with just one criteria: the absolute lowest price, to the exclusion of all else. Then, without a trace of irony, many of these same folks come back and complain loudly about how god-awful air travel has become.