I'm not expert in xem, but what price do you think it can reach? Is it safe buy now?
If you just consider only Japan and forget about the rest of the world, I would say yes, yes and yes. It is still a very good time to buy XEM now. Nem is extremely popular in Japan. New projects are going to utilize NEM pretty soon. So money will rapidly flow into NEM.
As all the projects/tokens based on Ethereum had great impact on Eth value, the projects that are utilizing NEM that are currently in development will dramatically increase XEM value. The fact is NEM was extremely devalued for over a year. It didn't reach its real value yet! which is at least x4 its current value "=$1".
Is it OK that one of the most advanced blockchain technology "NEM" that is the most popular in Japan is of 2.5 Billion value? Yes, absolutely.
Is it possible that it would fall back to 1 B or even 1.5 B? No, why? cause Japanese do not have anything better to invest in when it comes to crypto!